A STRIKE at Fremantle port has ended sooner than expected after talks broke an impasse between union and the operator.

The industrial action started at 5.30am yesterday and was planned to continue until the same time on Sunday.

The union was concerned about the possibility of job losses if the port was privatised, despite Transport Minister Troy Buswell saying that would not happen.

The union wanted a clause inserted in the employment agreement, guaranteeing permanency of employment for the life of that agreement.

Femantle Ports chief executive Chris Leatt-Hayter said an agreement had been reached on the issue after lengthy discussions yesterday.

The employees returned to work this morning.