The vow of further blockade-running came the day after the Israeli navy intercepted two vessels from Canada and Ireland off the Gaza shore, Ynetnews reported.
"This is undoubtedly only the first wave," Derrick O'Keefe, one of the organizers of the Canadian blockade-running effort, said. "Other countries are also organizing groups to sail to Gaza, and in Canada we are planning to send more ships."
After the two captured vessels were towed to Ashdod Port in Israel, the 27 passengers from Greece, Canada, Israel, Scotland, Egypt, United States, Morocco, Spain and Ireland were taken to a Population and Immigration Authority detention center.
On Saturday, 21 of the 27 passengers remained in custody. The other six passengers were released on condition that they leave Israel Sunday.
O'Keefe also said anti-Israel rallies were being held in Ottawa, Toronto and Vancouver.
"The Canadian people do not support our government's policy toward Israel. I believe that the blockade on Gaza is unaccepted by most Canadians," he said.