A vessel that was approaching Freedom Flotilla Coalition's Gaza-bound charity ship the Madleen has left, the coalition said early on Monday, after an alarm was sounded on the ship warning of a possible interception.

Israel says it enforced a lawful blockade in the international waters where it seized a flotilla carrying aid and activists bound for Gaza. But the seizure likely violates international laws.

A Gaza-bound aid ship carrying Greta Thunberg and other activists, as well as food meant for the enclave, was intercepted early Monday by Israeli forces. The big picture: The ship, called the Madleen,

The Madleen, launched by the Freedom Flotilla Coalition, is one of several Gaza-bound vessels intercepted by Israel.

The humanitarian ship with Swedish climate activist Greta Thunberg and 11 other volunteers on board was intercepted by the Israel Defense Forces (IDF), using drones and unidentified chemicals.

An earlier attempt by the Freedom Flotilla to sail to Gaza on another aid boat, the Conscience, ended on May 2 when Israeli drones bombed the boat after it left port in Malta. The activists aboard were evacuated unharmed, but the 12-person crew was left stranded at sea on the disabled boat for two more weeks before reaching safety.

Greta Thunberg has been deported from Israel after trying to bring aid to Gaza with 11 other activists- but their Flotilla wasn't the first.

Shortly after their arrests, the Freedom Flotilla Coalition posted prerecorded videos of the crew calling on Israel to release them.