Hours after the IAF struck a booby-trapped building in the central Gaza Strip, Palestinian terrorists launched a rocket into Israel from the coastal territory overnight Thursday. The rocket hit an open area in the Eshkol region, causing no casualties or damage to property. The air strike on Thursday evening - the first in over a month - caused no casualties as the structure was unoccupied at the time. It came a day after a Kassam landed in an open area in the same region. No one was wounded and no damage was reported in what was the first such attack since the end of last month, when two rockets slammed into the western Negev, causing neither casualties nor damage. Also Thursday, Egyptian security forces arrested nine Sinai Beduin near the Gaza border on suspicion of smuggling weapons, merchandise and money to Hamas. Two of the suspects were caught at the Rafah border crossing in possession of more than $90,000. On Wednesday, Egyptian police discovered 900 kilograms of TNT hidden in 18 sacks near the border with Gaza. In addition, Egyptian authorities arrested three young Palestinians on suspicion of infiltrating into the country.