The RCMP are investigating a security threat against two Marine Atlantic vessels early Sunday morning.

Darrell Mercer, a spokesperson for Marine Atlantic, did not specify what the threat was. But he said they received the information at 12:45 a.m. Newfoundland time.

Marine Atlantic then contacted the RCMP and brought both the MV Blue Puttees and MV Atlantic Vision back to port.

Passengers were asked to move into a muster area while police and ferry crews searched the ships.

Mary Walters of Searston in the Codroy Valley was asleep in her cabin on board the Atlantic Vision when she heard an annoucement over the ship's PA system, ordering all passengers to take all their belongings and leave their cabins.

"We were hauled down in the lounge, just sitting around, and they keeping coming back on saying, 'We're going to be docking in Port aux Basques shortly,'" said Walter.

"We didn't know if we were going to get out in those [life] boats, we didn't know if we were going to get blowed up, we didn't know anything."

Walter said the ferry docked in Port aux Basques — and before she had time to disembark, the ship was cleared to leave port once more.

"Before we got even moved, they said, 'Oh, the incident has been taken care of,'" said Walter. "They did not tell anybody anything."

Mercer, the spokesperson for Marine Atlantic, said nothing was found aboard either ferry, so both vessels were cleared to return to their schedules. 

The police are now investigating the incident.