Egyptian authorities seized on Monday a large amount of ammunition and arms in a security campaign at the border city of Rafah.
Four bags packed with around 600 kg of TNT and a small number of hand grenades, landmines and machine guns were found in caches in an area called El-Sarsoureya, north of Egypt's Rafah crossing with Gaza, a security source told Xinhua on condition of anonymity.
The source did not rule out that the seized arms and ammunition were part of the remnants of battles that took place in the Sinai Peninsula during the second half of last century.
In the same security campaign, Egyptian police also discovered three secret underground tunnels used for smuggling goods and vehicles to the besieged strip.