Egyptian police found two weapons caches buried in two different districts of Sinai Peninsula, a police officer said Saturday.

The official said the first cache contained boxes of ammunition, rocket-propelled grenades and anti-aircraft missiles, all hidden in 27 plastic sacks near al-Raouda village, some 100 kilometers west of the border with the Gaza Strip.

The official who spoke on condition of anonymity because he was not authorized to talk to the media, added that another cache was discovered Saturday in el-Massoura, a village about 2.5 miles west of the border with Gaza, containing about 100 kilograms of explosives.

He pointed out that explosives were uncovered following a tip from local Bedouins, adding that an investigation was under way to find out who had buried them. The weapons were to be smuggled into the neighboring Gaza Strip, the official added.

Islamic militants have carried out three major bomb attacks in Sinai since October 2004. The blasts in the resorts of Sharm el-Sheik, Taba and Dahab killed 125 people. The government blamed the attacks on a local Islamic militant group, which appears to have been inspired by Al-Qaida ideology.

Northern Sinai has also been a major entry point for weapons into Gaza. Israel has repeatedly accused Egypt of not doing enough to stop smuggling into the seaside strip, particularly through tunnels. Egypt recently said it would make a greater effort to stop smuggling.