The Israeli military has warned it will take measures against the Freedom Flotilla Coalition, as a vessel chartered by the activist group approaches Gaza to protest Israel’s blockade on the Palestinian enclave, according to Al Jazeera.

When asked about the vessel by British newspaper The Times, Israeli military spokesperson Effie Defrin said, “For this case as well, we are prepared.”

“We have gained experience in recent years, and we will act accordingly,” he said, without offering details.