Despite Kenyan government assurances of success on Twitter, another explosion and more gunfire could be heard coming from the mall at around 6:30 a.m. local time on Tuesday, Associated Press reporters at the scene said.
Security forces carried a body out of the mall, which remained on fire, with flames and smoke visible. A Kenyan soldier wearing bomb disposal protective gear also exited the building.
While the government announced Sunday that ``most'' hostages had been released, a security expert with contacts inside the mall said at least 10 were still being held by a band of attackers described as ``a multinational collection from all over the world.''
Somalia's al-Qaida-linked rebel group, al-Shabab, which claimed responsibility for the attack, posted an audio message on a pro-militant website late Monday that they were still in control of the building.
``Despite botched attempts by the Jews and Christians to recapture the mall today, the mujahideen are still in control of the Westgate,'' al-Shabab spokesman Sheik Ali Mohamud Rage said in the message.
``The upper hand still remains theirs,'' he said.