Egyptian security forces have seized a large number of anti-aircraft rockets and missiles in a mountainous area in the southern governorate of Aswan, state news agency MENA reported.
Forces found 25 anti-aircraft rockets and 500 missiles early on Monday in Wadi Al-Naqra, northeast of Aswan, MENA said without elaborating.
Since the ouster of Islamist president Mohamed Morsi last summer, Egypt has been hit by an Islamist insurrection, based mainly in the border Sinai Peninsula, adjoining Israel and the Palestinian Gaza Strip.
Last month, security forces seized 20 Grad rockets along with their launching pads being smuggled in from the Gaza Strip through a tunnel by militants in northern Sinai.
Also in July, gunmen killed 21 Egyptian border guards near the frontier with Libya.
Authorities have grown wary over the rising security threat from the burgeoning militancy in Sinai and a violent spillover from the neighbouring strife-torn Libya where militia fighting has worsened in recent weeks.