Fighters from the Benghazi Shura Council, which includes former rebels and militants from al Qaeda-linked Ansar al-Sharia, gesture on top of a tank next to the camp of the special forces in Benghazi.

BENGHAZI — Libya’s Islamist militant group Ansar al-Sharia has said that it seized complete control of Benghazi late on Wednesday, declaring the city an “Islamic emirate,” the group’s representative said.

Ansar al-Sharia is blacklisted by the United States over its alleged role in an attack on the US consulate in Benghazi, eastern Libya.

An official representative for the armed group told a local radio channel that Benghazi is now under its control.

“Benghazi has now become an Islamic emirate,” said Mohammed al-Zahawi, the spokesman, to Radio Tawhid.

However, Khalifa Haftar, a retired, renegade former army general who earlier this year launched a self-declared campaign to clear the city of Islamist militants, denied the group’s claims.

“The national Libyan army is in control of Benghazi and only withdrew from certain positions for tactical reasons,” Haftar told Al Arabiya News Channel.

“The claim that Benghazi is under the control of militias is a lie,” he said.

Islamist groups have seized an army special forces headquarters in Benghazi after days of fighting left at least 35 soldiers dead and plunged the country deeper into lawlessness.

An Islamist and jihadist alliance announced the capture of the main military base in the eastern city in a statement Wednesday, which was confirmed by an army official.

Ansar al-Sharia posted photos on Facebook of dozens of weapons and crates of ammunition it claimed its jihadists had seized from the base.

Libya’s Red Crescent said it had recovered the bodies of 35 soldiers from the base.

Fighting in Benghazi has claimed about another 60 lives since Saturday, medical officials in the city said.

Clashes also erupted in Tripoli, as shelling resumed on Thursday in the southern part of the capital, where rival militia brigades were battling for control of the capital’s main airport in some of the worst clashes since the 2011 revolt which ousted Muammar Gaddafi.

Around 200 people have been killed since the clashes erupted two weeks ago in the capital and also in the eastern city of Benghazi, where a coalition of Islamist militants and former rebels have overrun a major army base in the city.

Thuds of artillery and anti-aircraft cannons echoed across Tripoli from early Thursday morning, a day after a temporary ceasefire agreed by factions to allow firefighters to put out a huge blaze at a fuel depot hit by a rocket.