The munitions were found in a warehouse in the vicinity of Arish in northern Sinai on Friday, al-Arabiya reported.
An Egyptian security source said the missiles were to be smuggled via underground tunnels to Gaza, the Times of Israel reported. According to the source, six U.S.-made missiles that were possibly smuggled into the Sinai from Libya were found. The source said the missiles have a distance capability of 2 kilometers (1.24 miles).
In December, Egyptian security forces captured 17 French-made rockets that were to be smuggled into Gaza, the Times of Israel said.
In August last year, Egypt launched a military offensive in the Sinai Peninsula against terror cells there.