BOGOTA, Colombia (AP) — Colombia has offered a 500 million peso ($260,000) reward for information leading to those responsible for a car bomb that injured nine people.

President Juan Manuel Santos says authorities are still investigating who may have placed the bomb and what the target was.

Santos said Friday that while the government does not rule out peace talks with illegal armed groups, they will not happen as long as terrorist attacks continue.

He called them "the last bites of a dying dog."

Thursday's blast was the first car bomb in the capital, Bogota, since January 2009.

Some 110 pounds (50 kilograms) of explosives shattered windows in at least 30 buildings and smashed the facade of a bank.