Israel’s defense minister has confirmed that Israel assassinated Hamas’ top leader last summer and is threatening to take similar action against the leadership of the Houthi rebel group in Yemen.

The comments by Israel Katz appeared to mark the first time that Israel has acknowledged killing Ismail Haniyeh, who died in an explosion in Iran in July. Israel was widely believed to be behind the blast and leaders have previously hinted at its involvement.

In a speech Monday, Katz said the…