Egyptian security forces arrested 15 people on Friday on charges of making rockets to be smuggled into the Gaza Strip through border tunnels, an Egyptian security source said according to the Deutche Presse Agentur dpa. He added that authorities confiscated components that could have been used to make rockets in a workshop located in the Sheikh Zuwaid area of the northern part of the Sinai peninsula. Border tunnels were dug by Palestinians to transfer food supplies, goods and even people from Egypt into the besieged enclave. Israel, which imposed a blockade on the densely populated enclave ever since the Palestinian Islamist group Hamas took control in June 2007, alleges that the tunnels were also used to smuggle weapons for used against the Israelis.