WASHINGTON: The leader of Al-Qaeda's branch in Yemen was targeted in a CIA drone strike last week, though US officials would not immediately confirm he had been killed, The Washington Post reported Monday.

Nasir al-Wuhayshi's group, Al-Qaeda in the Arabian Peninsula, is behind several plots against the United States, including an attempt to blow up a US commercial airliner on Christmas Day 2009.

US officials told the Post they were reviewing intelligence linked to a June 9 drone strike that targeted Wuhayshi, who was also named Al-Qaeda's number two, and other AQAP operatives.

“We are looking to confirm his death,” a US intelligence official told the newspaper.

A local Yemeni official told AFP Tuesday that Wuhayshi is believed to have been killed in the raid in Al-Qaeda-held Mukalla, in southeastern Yemen, and that his body could be kept in a local morgue amid tight secrecy imposed by the militants.

“There are currently four bodies belonging to Al-Qaeda members. One of them is believed to be Wuhayshi's,” the local official told AFP, requesting anonymity.

“The hospital remains tightlipped about the identities, but there is information from within the hospital that the body of Wuhayshi is in the morgue,” he added.

CNN, meanwhile, cited two Yemeni national security officials as saying Wuhayshi had been killed on Friday.

A Yemeni official last week told AFP that a drone had fired four missiles on June 9 at three Al-Qaeda militants, including an unnamed “leading figure”, near Mukalla port, killing them on the spot. The US government had offered a $10 million reward for any information leading to his capture or killing.

A former aide to Al-Qaeda's late founder Osama bin Laden, Wuhayshi attended the group's Al-Farouk training camp in Afghanistan in the late 1990s. He is said to have fled Afghanistan in 2002 to Iran, where he was arrested and handed over to Yemen. There he was held without charge until he escaped by tunnelling his way out with 22 other prisoners in February 2006. In 2007, Wuhayshi was named head of Al-Qaeda in Yemen.

When bin Laden was killed by US commandos in May 2011 in Pakistan, Wuhayshi warned the Americans not to fool themselves that the fight would end with the Al-Qaeda chief's demise.

“What is coming is greater and worse, and what is awaiting you is more intense and harmful,” he said.

AQAP has exploited months of fighting in Yemen between Iran-backed rebels and their Saudi-backed rivals to consolidate its grip on Hadramawt's provincial capital Mukalla -- a city of more than 200,000.

The group claimed responsibility for the deadly attack in January on the French satirical magazine Charlie Hebdo, in which 12 people were killed, saying it was “vengeance” for the weekly's cartoons of the Prophet Mohammed.

The United States considers AQAP the extremist group's deadliest global franchise and regularly targets its militants with armed drone strikes on Yemeni territory.

It is the only government that operates the unmanned aircraft over the impoverished country.