Kenyan president: 39 dead, 150 wounded in mall attack.

Armed gunmen were holed up with hostages inside an upscale shopping mall in Kenya's capital overnight Saturday, hours after brazenly gunning down shoppers, diners and others.

Bodies still littered the lobby and ground floor of the Westgate Mall around 10:30 p.m. (3:30 p.m. ET), more than 10 hours after the attack began, according to the Kenya National Disaster Operation Centre.

There were 39 confirmed dead and 150 wounded at that point, according to Kenya's president, who added that his close relatives are among those killed. Two gunmen, including one who was detained after being shot, are also dead.

With the situation far from settled, it's very possible the death toll might grow.

Authorities said that as many as 36 hostages are being held, according to journalist Martin Cuddihy of the Australian Broadcasting Corp., who was at the scene and interviewed by CNN.

Al-Shabaab, an al-Qaeda-linked militant group based in Somalia, claimed responsibility for the carnage and vowed not to negotiate with Kenyan authorities. It claimed that "all Muslims" were escorted from the mall before the attack -- suggesting that its targets were people who didn't believe in their extreme form of Islam.