Is the siege of Nairobi's Westgate Mall finally near an end? Kenyan authorities say they believe all the hostages have been released, but journalists from the AP and Reuters heard yet more gunfire and explosions as the Kenyan military moved through the building. Officials say the military is going from floor to floor and room to room in the darkened building searching for surviving militants, the Los Angeles Times reports. Somalia's al-Shabab militant group tweeted early today that its fighters "are still holding their ground" and their captives are "still alive, looking quite disconcerted but, nevertheless, alive."