Sudan's Prime Minister Mohamed Taher Ayala and the head of the ruling National Congress Party, Ahmed Haroun, are among dozens of officials to be arrested in Sudan on Thursday, a top military official with direct knowledge of the situation told CNN. Haroun, an aide to President Omar al-Bashir, has an ICC warrant for him. Former defense minister Abdel Rehim Mohamed Hussein, former government minister and leading member of the National Congress Awad Al-Jaz and former vice presidents Berri Hassan Saleh and Ali Othman Taha, have also been arrested, the official said. CNN witnessed military troops in the capital Khartoum storming the Islamic Movement headquarters, part of the ruling party, on Thursday.