Updated

Islamic extremists in Nigeria have seized the town of Chibok, where insurgents kidnapped nearly 300 schoolgirls in April, prompting thousands of residents to flee.

A local official says the Boko Haram insurgents entered the town yesterday, shooting from pickup trucks and motorcycles. He says "everybody" in the town is trying to escape with their lives.

Dozens of the kidnapped girls escaped in the first couple of days after their capture from a boarding school just outside the town, but 219 are still missing. A community leader says none of the escapees was in Chibok at the time of the attack.

In a separate development, police say a car bomb has exploded in northern Kano city tonight, killing at least six people including three police officers. The city is the second largest population center in Nigeria. There's been no claim of responsibility for the bomb, but Boko Haram extremists have detonated them in Kano in the past.