Former Philippine President Rodrigo Duterte said he takes full responsibility for his administration's "war on drugs", in a video message posted on his Facebook account, as he braces for a legal battle at the International Criminal Court.

At least nine charity workers have been killed and several others injured in an Israeli strike in Beit Lahia, northern Gaza, the enclave’s Government Media Office said Saturday, making it the deadliest incident since the ceasefire went into effect in January.

An NGO says six volunteers were "deliberately targeted" and killed while on their way to deliver aid. The Israeli military says it struck two individuals who it identified as "terrorists" and later struck several other suspects.

As Hamas on Friday offered to release American Israeli soldier Edan Alexander and the remains of four other hostages held in Gaza, Israel's prime minister called it psychological manipulation.

Hamas says it will only release an American-Israeli and the bodies of four other hostages if Israel implements the existing ceasefire agreement in the Gaza Strip, calling it an "exceptional deal" aimed at getting the truce back on track.

Hamas says it will release American Israeli Edan Alexander and the bodies of four other hostages only if Israel implements their cease-fire agreement.