Heavy fighting has subsided in Chad's capital after breaking out at dawn, between government troops and rebels trying to overthrow the president.
A BBC correspondent in N'Djamena said gunfire and shelling began at dawn and lasted for some two hours.
Speaking on the radio, President Idriss Deby said government forces had destroyed a small rebel column that attempted to enter the capital.
He said that government troops were in "complete control" of N'Djamena.
Only sporadic gunfire could be heard around the capital following his announcement.