LAHORE: Five people including three police officers were killed in an attack Thursday on the police investigation building in the eastern city of Lahore, a police official said.

Gunmen stormed two police training centres and the Federal Investigation Agency (FIA), with senior Lahore police official Haider Ashraf telling a local television channel that the FIA had been cleared of rebels.

"They (police) have taken control the building has been cleared. The operation is complete. There were five dead total... three of them are police officials," said Ashraf.

He said that one of the dead was a civilian, describing the fifth fatality as "unidentified."

He did not comment on the situation at the two training centres.