Hamas jittery after leaders killed, arrests 150 more potential "collaborators" within the group

From Al Bawaba:

Informed sources from the Gaza Strip say the Izz al-Din al-Qassam, the military wing of the Hamas movement, is waging a campaign of arrests in the ranks of the movement's members involving more than 150 members, for interrogation about security leaks.

The sources said that Hamas in a state of internal confusion after the martyrdom of its three leaders Mohammed Abu Shamala, Raed Al-Attar, and Mohammad Barhoum, at dawn on Thursday, and the attempted assassination of the military commander, Mohammed Deif, who lost his wife and his son and daughter on Tuesday.

The sources indicated that the three leaders of Hamas who were killed at dawn on Thursday in Rafah were killed while meeting in a secret underground tunnel at a depth of 30 meters.

The sources said that the Israeli army used missiles and bunker buster bombs with great skill and were able to cause extensive destruction.

The sources indicated that the meeting of the leaders of Hamas in the southern Gaza Strip was in a tunnel under the house belonging to the Kileb family and that the meeting was scheduled to be attended by 9 Hamas leaders, but the raid was carried out after the arrival of the first three leaders.

(h/t Yoel)