CAIRO, Sept. 7 (Xinhua) -- At least 30 militants were killed or injured on Saturday in a raid launched by the Egyptian army on hideouts of Jihadist militants in North Sinai governorate bordering Israel, a security source told Xinhua.
The raids targeted 12 villages in Sheikh Zuwaid city, and the clashes are still going on between security forces and militants, the source said.
"It is the biggest military campaign in Sinai since the 1973 war," the source said, adding around 2,500 soldiers and officers from the army, police and central security forces took part in the operation.
Military helicopters carried out several air strikes on suspected militants hideouts, and several houses and weapon warehouses were also destroyed, he said.
Three vehicles belonging to the militants were destroyed, but the exact death toll was not clear yet, he added.
Meanwhile, official news agency MENA reported at least 15 militants were arrested.
Security conditions deteriorated in the Sinai Peninsula after the ouster of Islamic President Mohamed Morsi. The army hence intensified its operations to eradicate the focal points of terrorists and hardline Jihadist movements.