Hamas on Saturday deployed troops to the border separating the Gaza Strip and Israel, Palestinian sources in the Gaza Strip said, but this time they were members of its armed wing, the al-Qassam Brigades, not the force it had previously dispatched to prevent rocket fire at Israel.

The move, which came shortly after a rocket was fired at Israel for the fourth time this week, delivered a clear message to the smaller armed groups in the Gaza Strip that Hamas will not tolerate rocket fire at Israel. It may have also served as a message to Israel that Hamas seeks calm rather than conflict.

The Izz ad-Din al-Qassam Brigades are considered Hamas’s elite force operating in the Gaza Strip, and Hamas’s decision to entrust them to prevent rocket fire against Israel may signify the Islamist terror group’s intention to keep the ceasefire reached with Israel after the November 2012 mini-war.