Jakarta - Indonesia will deport 15 Philippine activists on Tuesday after they held a protest with local fisherman near the venue of a global conference on ocean conservation, officials said.

Police broke up the demonstration Monday at a beach near Manado, Sulawesi island, where the World Oceans Conference is under way this week. "They didn't have any permits from police to stage a rally," immigration ministry official Pramela Pasaribu told AFP.

The activists were calling for more involvement of local stakeholders in the five-day conference, which has gathered senior officials and experts from 70 countries, she said.

Eleven men and four women from the Philippines will be sent home later Tuesday. Rally spokesman Riza Damanik said the protest was peaceful and was held about an hour's drive from the conference venue.

"Coastal communities and fishermen are the most vulnerable to the impact of climate change. They should be involved in this conference in order to get a better result," he said.