JERUSALEM — Israeli forces seized a Gaza-bound aid boat and detained Greta Thunberg and other activists who were on board early Monday, enforcing a longstanding blockade of the Palestinian territory that has been tightened during the war with Hamas.

Surveillance footage released June 9 showed Israeli forces intercepting an aid boat bound for Gaza, arranged by the Freedom Flotilla Coalition, with passengers including climate activist Greta Thunberg.

JERUSALEM (AP) — Israel is supporting armed groups of Palestinians in Gaza in what it says is a move to counter Hamas. But officials from the U.N. and aid organizations say the military is allowing them to loot food and other supplies from their trucks.

Prime Minister Benjamin Netanyahu acknowledged only that Israel had been working with “clans.” But the opposition leader warned that the “weapons going into Gaza will eventually be pointed at Israeli soldiers and civilians.