Chad and Sudan agreed on Tuesday to restore diplomatic relations and reopen their volatile border which was closed in mid-April following rebel raids N'Djamena blamed on Khartoum, Reuters reported. Several African leaders witnessed the public reconciliation in N'Djamena between Chadian President Idriss Deby and Sudanese counterpart Omar Hassan al-Bashir. Deby broke off relations with his eastern neighbour on April 14, accusing Sudan of promoting and backing a surprise attack by rebels on the Chadian capital in which several hundred people were killed and wounded. Khartoum denied the charges.