Updated Sunday 5:46 a.m. ET
The death toll at an upscale shopping mall in Nairobi has increased to at least 52, and civilians are still inside as militants exchange sporadic barrages of gunfire with Kenyan security troops outside.
"The priority is to save as many lives as possible," Joseph Lenku, Kenya's Interior cabinet secretary told AP early today. Kenyan forces have already rescued about 1,000 people, he said.
He said that five to 15 attackers are involved in the standoff, but declined to estimate the number of hostages.