Cyprus said on Tuesday that it plans to prosecute five people over a 2005 plane crash in Greece that killed all 121 people on board in the nation`s worst ever air disaster.

`We came to the conclusion that from the evidence collected a criminal prosecution is justified against several people whom we consider are accountable for the plane crash,` Attorney General Petros Clerides said.

He said charges were being drafted against five people whom he did not name.

Relatives of the dead have long called for criminal action to be taken against those deemed responsible for the tragedy when an airliner operated by charter company Helios Airways slammed into a Greek hillside in August 2005.