A Kassam rocket fired from Gaza hit a house in the Sha'ar Hanegev region Thursday afternoon. The residents were not at home at the time of impact, and although the rocket failed to explode, an exterior wall was damaged. Another rocket landed simultaneously in an open area in the same region, causing no casualties or damage. Also Thursday, two young Sderot girls, aged three and nine, were lightly injured when they fell as they scampered to find shelter during a Kassam attack. The girls were on the town's Moshe Rabeinu Street when the Color Red siren sounded, warning of an incoming rocket. They were evacuated to Barzilai Hospital in Ashkelon. The rocket landed north of Gaza, causing no casualties or damage. Throughout the day, a total of four mortar shells and six Kassam rockets landed in the western Negev region. Apart from the damage to the Sha'ar Hanegev home, no casualties or damage were reported. On Thursday morning, the IDF arrested 60 Palestinian terror suspects in the northern Gaza Strip, west of Beit Hanun. All of the suspects were transferred to security forces in Israel for further interrogation. The operation, which began Wednesday evening and was completed Thursday morning, was carried out by Givati Brigade, Armored Corps and Engineering Corps troops. The IDF said that the operation was a success. Also Thursday, 12 demonstrators were injured and two arrested during a protest against the West Bank security barrier in the village of Nili'in, near Modi'in. The protesters attempted to prevent bulldozers from beginning new construction work on the barrier and threw stones at security personnel. An IDF spokesperson said that the demonstration was illegal, since it was held in a closed military zone.