CAIRO (AP) — United States Central Intelligence Director David Petraeus began a two-day mission to Cairo on Wednesday for a two-day visit for security and counter-terrorism talks, Egyptian officials said.

Petraeus is leading a U.S. delegation that will meet with top Egyptian security officials to exchange information about combating terrorism, the officials said.

The officials spoke on condition of anonymity because they were not authorized to speak to reporters. A U.S. Embassy spokesman declined to give information about the visit.

The visit comes as Egypt is clamping down on suspected militants.

Last week, Egyptian security forces identified a Libyan militant, killed after detonating a bomb during a raid, as suspected of links to the deadly attack on the U.S. mission in Benghazi on Sept. 11 which left four Americans dead, including the U.S. Ambassador Chris Stevens.

Egypt’s Interior Ministry said in a detailed report on Wednesday that it has detained 13 militants suspected of planning operations to destabilize the country in a series of raids. A ministry statement said most had large amounts of explosives and that the raids took place in different areas of Egypt over recent weeks. A Tunisian was among those arrested in a raid last week.

After the fall of Libyan dictator Moammar Gaddafi after eight-month conflict last year, Libya’s political and security vacuum has fueled cross border smuggling of weapons and militants, through Egyptian territories to Gaza Strip.