Original sentence: According to Mavi Marmara passengers and personnel, IDF commandos surrounded the ship with 40 zodiacs, raided illegally aboard from attack helicopters and from sea on international waters after stopping ships rotors, then started shooting even though they raised white flags on board and they defended themselves with sticks they could find on ship.The Gaza flotilla clash occurred on 31 May 2010, when a flotilla of six ships carrying international pro-Palestinian activists, known as the "Gaza Freedom flotilla", who were planning to attempt to breach the Gaza blockade, were seized by Israeli naval forces in the international waters of the Mediterranean Sea
Edited sentence: The Gaza flotilla clash occurred on 31 May 2010, when a flotilla of six ships carrying pro-Palestinian activists, known as the "Gaza Freedom flotilla", who were planning to attempt to breach the Gaza blockade, were seized by Israeli naval forces in the international waters of the Mediterranean Sea