Workers at Fremantle’s inner harbour will stage a 24-hour strike on Friday that is set to disrupt shipping at the busiest container port on Australia's west coast.

The strike, which has been called by the Maritime Union of Australia (MUA), will begin at 10am local time (0200 GMT).

The industrial action is spilling over from a dispute at Fremantle Port’s Kwinana Bulk Terminal that has been ongoing since 15 May.