Victoria environmentalist Zoe Blunt says her friend, Kevin Neish, was on one of the vessels. Blunt said she has been keeping in touch with Neish, 53, a Victoria resident, and last heard from him on Thursday.

"These were all peace activists. I don't believe that they were armed," she said. "I certainly don't believe that they would be provoking commandos with automatic weapons. What they were doing was, they were trained in non-violence. Kevin's job specifically was to defend the journalists on the ship."

Blunt said organizers believe Neish's boat is safe. "I've just spoken to the organizer for Free Gaza in Washington, D.C.," she told CBC News on Monday morning.

"He's telling me that the Challenger 2 has been brought in to port in ... Israel and we don't have any access to the people on the ship but he believes there were no casualties on board the ship Kevin is on."

Blunt said organizers say no one will be able to talk with Neish until at least Tuesday. She believes Neish was the only Canadian among the 600 people aboard the flotilla.