BEIRUT — A leading rights group determined that Israel committed war crimes when it killed journalist Amal Khalil and injured another journalist in an airstrike in southern Lebanon in April.

Human Rights Watch said it reviewed photo and video evidence, witness statements and a request to Israel’s military by the Lebanese Red Cross to access the site on April 22. The evidence, the New York-based group said, indicates that Israel either knew or should have known that Khalil and fellow journalist Zeinab Faraj were civilians.