The Libyan government—now exiled to the eastern city of Tobruk—expelled the Sudanese military attaché on Sept. 6, charging that a Sudanese military transport loaded with munitions illegally entered Libyan airspace bound for Tripoli's Mitiga airport. The weapons were discovered when the plane stopped to refuel at the southern oasis town of Kufra, and were presumably intended for the Islamist-led Libyan Dawn rebels that are now in control of Tripoli. "Sudan is interposing itself by providing arms to a terrorist group that is attacking the headquarters of the state," said a government statement. "This also represents a clear violation of international resolutions, and the latest UN Security Council resolution." Sudan confirmed sending the plane but insisted the weapons were intended for legitimate border forces patrolling the southern desert. "The plane did not carry any material for armed groups in Libya," Sudan's army spokesman al-Sawarmi Khalid told the local TV channel Shouruq. (The Guardian, Sept. 7; Libya Herald, Sept. 6)

Libyan government forces and helicopters belonging to renegade general Khalifa Haftar bombed ammunition sites of suspected Islamist militants in Benghazi on Sept. 4. Fighting in the two main cities Tripoli and Benghazi has now displaced 100,000 people. (Reuters, Sept. 4) The Islamist-led Libyan Dawn rebels have effective control of Tripoli, and on Sept. 1 raided the evacuated US embassy compound. (Al Jazeera, Sept. 1) A delegation from Libya's House of Representatives has failed in repeated bids to broker a cease-fire with the Libyan Dawn coalition. Libya's parliament has taken refuge in the eastern city of Tobruk, having been displaced from both Tripoli and Benghazi. (Libya Herald, Sept. 9) Libya's Grand Mufit Sadiq al-Ghariani is accused by the parliament of backing "terrorists." The country’s recently appointed prime minister Abdullah al-Thinni urged lawmakers to remove Ghariani after he broadcast several sermons online in support of the Dawn coalition and other Islamist-aligned militias. (The Economist, Sept. 3)

Unidentified warplanes carried out air-strikes on a small arms depot and other targets controlled by Islamist militias in the Libyan capital, Tripoli, Aug. 18. At least six were killed in the strikes. The strikes were beyond the capacity of the limited Libyan Air Force, and Libyan authorities said the planes had come from a foreign state. The US, France, Italy and Egypt all denied responsibility. Also hit in the raid were camps along the road to Tripoli's airport, which is contested by rival militias. Another target was Tripoli's Mitiga air base, also controlled by Islamists. At least 100 have been killed in fighting in Tripoli over the past month. (NYT, Xinhua, Aug. 19)

Libya's parliament on Aug. 13 passed a measure calling for foreign intervention to protect civilians from deadly clashes between rival militia groups. MPs were meeting in the eastern city of Tobruk because of violence in the capital Tripoli and the second city Benghazi. The resolution, which passed by 111 out of 124, calls on the "United Nations and the Security Council to immediately intervene to protect civilians and state institutions in Libya." The body also voted to formally disband Libya's militia brigades left over from the 2011 revolution that have yet to be incorporated into a regular army. Fighting between the rival Zintan and Misrata militias for control of Tripoli's airport left over 200 dead last month. (AFP, Aug. 14; BBC News, Aug. 13) Libya's caretaker prime minister, Abdullah Thinni, meanwhile issued a statement assuring that all of the country's oil ports are still under the "control" of the central authorities—a clear sign of fears that they aren't. (Libya Herald, Aug. 14) On the day before the parliament vote, Col. Mohamed al-Suwaisi, head of the Tripoli Security Directorate, was assassinated while his car waited at an intersection after leaving a meeting with police commanders in Tajoura, a suburb of the capital. (Libya Herald, Middle East Eye, Aug. 12)

A fire from fuel tanks near Tripoli's international airport set ablaze by rocket strikes is out of control as clashes between rival militias continue in the area, Libya's National Oil Company reports. Six million liters of fuel were set ablaze by a rocket late on July 27, with a second depot hit the following day, darkening the city's sky. "The situation is very dangerous after a second fire broke out at another petroleum depot," the statement said, warning of a "disaster with unforeseeable consequences." The Libyan government appealed for "international help" fighting the blaze amid heavy fighting that the government says has killed more than 150 people in Tripoli and Benghazi during two weeks of fighting. (Al Jazeera, July 29) Fighting continued July 28, the first day of Eid al-Fitr, with bombs and explosions heard across Benghazi. (Libya Herald, July 28)

Gunmen killed at least 20 Egyptian military border guards near the frontier with Libya in a July 19 raid. An army spokesman said the attackers were "terrorists"—the term Egyptian authorities use for Islamist militants. A weapons storage facility was reportedly blown up by a rocket-propelled grenade during the attack, which took place in Wadi al-Gadid governorate, bordering Libya and Sudan. At least two militants were reportedly killed in the clash. (Radio Australia, July 20) The attack comes three weeks after Egyptian President Abdel Fattah al-Sisi flew to Algiers for a meeting with his Algerian counterpart Abdelaziz Bouteflika. Commentators in the region say the meeting was intended to coordinate support for Libyan Gen. Khalifa Haftar, who has launched a unilateral offensive on Islamist militants in Benghazi. (Middle East Monitor, June 27)

Tripoli's airport has been severely damaged and several commercial planes destroyed in heavy fighting between armed groups, prompting the United Nations to pull its staff out of Libya. A coalition of Islamist militias under the banner of Operation Fajr, or Dawn, is apparently attempting to wrest control of the facility from the Zintani militias stationed there. At least 15 people have been killed in clashes in Tripoli and Benghazi in the past three dfays.  (Reuters, July 15; Libya Herald, July 13) Meanwhile, Islamist militant Faraj al-Shibli, named by the US as a suspect in the 2012 attack in Benghazi, was found dead in the eastern town of Marj, where he had reportedly been detained by a local militia over the weekend. Al-Shibli, a member of the Libyan Islamic Fighting Group, had been detained by government forces last year, and was apparently interrogated by the FBI—before being released without explanation. He had been wanted by the Qaddafi regime in connection with the murder of a German intelligence agent in Sirte in 1994. Libyan authorities also issued an arrest warrant for Osama bin Laden in connection with the crime. (CNN, July 14)

Ahmed Abu Khatallah (BBC profile) made his first appearance on June 28 in the US District Court for the District of Columbia  where he pleaded not guilty to a federal terrorism offense arising from his alleged participation in the September 2012 attack on a US facility in Benghazi, Libya. Khatallah was indicted by a federal grand jury on the charge of "conspiracy to provide material support and resources to terrorists, knowing and intending that these would be used in preparation for and in carrying out a killing in the course of an attack on a federal facility, and the offense resulted in death." The attacks occurred on September 11 through September 12, 2012, and resulted in the deaths of Ambassador J. Christopher Stevens, Sean Smith, Tyrone Woods and Glen Doherty. The investigation into Khatallah's involvement is ongoing and the Department of Justice may bring additional charges as the case continues. "Now that Ahmed Abu Khatallah as arrived in the United States, he will face the full weight of our justice system," said US Attorney General Eric Holder. "We will prove, beyond a reasonable doubt, the defendant's alleged role in the attack that killed four brave Americans in Benghazi."