An Israeli-American man detained in Egypt on charges of spying is set to be freed on Thursday under a prisoner swap deal with Israel.

Egyptian authorities plan to release Ilan Grapel to Israel in exchange for 25 Egyptian prisoners. Three of the prisoners are minors.

Grapel apparently entered Egypt in January. In June, Egyptian authorities accused him of being an agent for Israel's Mossad. Egypt said Grapel engaged in espionage and incitement activities in connection to the anti-government protests that led to former Egyptian President Hosni Mubarak's resignation in February.

Israel denied the charges and said Grapel had no ties to Israeli or U.S. intelligence services.

News reports say Grapel will return to the United States after he is freed.