The Global Sumud Flotilla, an international mission seeking to break the Israeli blockade and deliver humanitarian aid to Gaza, is now roughly 150 nautical miles from the enclave, entering a highly contested and high-risk zone, the organization said Tuesday.

“Today, we approach the 150-nautical-mile mark – the point beyond which Israel has been known to seize vessels,” Dutch activist Roos Ykema said in a video statement.

The flotilla follows previous interception incidents.

On July 26, Israeli naval forces intercepted the Handala aid ship near Gaza and redirected it to Ashdod Port after it had reached roughly 70 nautical miles from the coast.

The vessel fell short of the 110-mile distance reached by the earlier Madleen mission before it was stopped.