N'DJAMENA, May 12 (Reuters) - Chad's government announced on Monday it was closing its eastern border with Sudan after Khartoum broke off diplomatic ties on Sunday.

Sudan cut diplomatic relations following a rebel attack on the capital on Saturday which it said was supported by Chadian President Idriss Deby. (For full Reuters Africa coverage and to have your say on the top issues, visit: http://africa.reuters.com/ ) (Reporting by Moumine Ngarmbassa; writing by Daniel Flynn)

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