NAIROBI -- More people were rescued early Wednesday from the site of an attack at an upmarket hotel and office complex in the Kenyan capital, Nairobi, as authorities warned the public to avoid the area.

Live TV broadcasts said more than 170 people were rescued from the DusitD2 complex and that gunshots could still be heard.

"We wish to caution all members of the public including politicians that Dusit Hotel and the area around 14 Riverside Drive is a Crime Scene that is under an active security operation," the Kenyan National Police Services said on its Twitter account.

"Until it is declared safe, everyone not actively involved in the operation should avoid the area," it said.