PARIS (AP) — Several dozen people were killed in a series of unprecedented attacks around Paris on Friday, French President Francois Hollande said, announcing that he was closing the country's borders and declaring a state of emergency.

At least 35 people died in shootings and explosions at multiple sites, many of them in a popular concert hall where patrons were taken hostage, police and medical officials said. The series of attacks gripped the city in fear and recalled the horrors of the Charlie Hebdo carnage just 10 months ago.