Egyptian authorities on Wednesday discovered three underground tunnels in Ahrash at the Egypt-Gaza border, a security source said.
Police have imposed tight security around four tunnels they found last week and are preparing to demolish them, the source said.
Tunnels between Egypt and Gaza are used to smuggle goods into the Palestinian territory, which has been under an Israeli blockade since the Palestinian militant group Hamas took power in 2007.
Israel has frequently accused Hamas of using the tunnels to smuggle weapons.
The source also said the tunnels have typically been used for smuggling electronics and gasoline.
Translated from the Arabic Edition