A group of protestors has taken control of three ships belonging to Rabaul Shipping, the company involved in last week's ferry disaster off Papua New Guinea.
Around 40 people have occupied a ferry and two cargoships at the Buka wharf in Bougainville.
Most of them are relatives of those who were on Rabaul Queen when it sank near Lae on 2 February, killing more than 100 passengers and crew.
Protest