NEW YORK, Dec 30: Authorities evacuated and searched two buses near the US navy base in Norfolk, Virginia, on Thursday after reports one of them was carrying explosives, but no bomb was found, MSNBC television said.

Two city buses that operate a route carrying staff onto the base were diverted to a parking lot near the base and evacuated after several warning calls to police and other authorities, the report said.

An MSNBC correspondent said: "The Norfolk, Virginia police department reported receiving a call." "The caller indicated it was some sort of bio terror device that would kill everybody on the base," he said.

Fox television showed live video pictures of two robots being manoeuvred close to the buses to determine whether there was a bomb on board either. The MSNBC correspondent later said the situation appeared to have been resolved and no explosives had been found. -Reuters