Turkish police fired tear gas and water cannon to keep people on the Turkish side away from the border fence while a Syrian warplane - supported by helicopters - attacked just over the border.
In neighbouring Ceylanpinar, anxious residents crowded outside a teahouse to watch the bombing.
One unnamed Turk said:
I thought the Turkish government said it wouldn't allow these helicopters to come so close to the border. Look, they're coming inside our border.