Nairobi Hostage Crisis Continues With Gunfire, Explosions

Smoke rises from the Westgate mall in Nairobi on September 23. Militants are continuing to hold an unknown number of hostages there.

A police officer mans the entrance of a building near the beseiged Westgate shopping mall on September 23.

A police officer instructs volunteers to take cover after hearing gunshots at the scene of the siege.

A soldier keeps watch near the Westgate mall.

A Kenyan officer and others run for cover at the Oshwal Center adjacent to the Westgate shopping mall as the hostage crisis continues on September 23.

Soldiers take cover after heavy gunfire is heard from the scene of the attack.

A soldier carries a child to safety as attackers take over the shopping center on September 21.

A police officer secures an area as civilians flee from the shopping center.

An injured woman is helped out of the Westgate shopping center after the shooting spree on September 21.

Military personnel mobilize on September 21 as militants battle security forces.

A man lies on the ground as armed policemen try to enter the shopping center after the initial attack on September 21.

A woman escapes through an air vent where she was hiding during the attack by masked gunmen.

Police take cover outside the Westgate mall on September 21.