JERUSALEM — A human rights group circulated a video on Tuesday that renews questions about last week’s killing of two Palestinian teenagers by Israeli forces during a West Bank demonstration.

The video, taken from a security camera belonging to a business in Beitunia, a West Bank town outside Ramallah, was edited and promoted by Defense for Children International-Palestine Section and shows two youths felled by apparent gunfire on Thursday about an hour apart in a sparsely populated concrete expanse shrouded by a cloud of smoke. Neither of the teenagers appeared to be engaged in provocative behavior at the time they were shot, though a photograph shows one wearing a black ski mask, and the video shows another individual hurling stones from the same spot seven minutes before the first shooting.

Hanan Ashrawi, a member of the Palestine Liberation Organization’s executive committee, condemned Israel’s “deliberate execution” of the teenagers, calling the shootings “crimes against humanity under international law” and demanding “immediate action” by the United Nations and the European Union. Rifat Kassis, executive director of Defense for Children International, said “neither child presented a direct and immediate threat to life at the time of their shooting” and urged Israel to “conduct serious, impartial, and thorough” inquiries to “hold the perpetrators accountable for their crimes.”

Lt. Col. Peter Lerner, a spokesman for the Israel Defense Forces, said Tuesday that investigations by the military and the police were continuing, and that “the preliminary inquiry up until this moment still does not indicate any use of live fire by the forces.” Colonel Lerner said that the few minutes of edited video footage did not capture the “atmosphere of violence” during the demonstration, and he noted that it did not show who fired the shots or whether they were rubber bullets or live ammunition.