(BBC) – The Ogaden National Liberation Front (ONLF) said it had seized the town of Mustahil and was also fighting for the towns of Wardheer and Khalavo in eastern Ethiopia.
It said at least 80 Ethiopian Woyanne regime soldiers had been killed.
An Ethiopian A Woyanne government spokesman told the BBC the reports were absolutely false and the ONLF was on the run.
On Saturday, the Ogaden rebels said they had killed more than 20 Ethiopian Woyanne troops in recent fighting, a report also denied by the Woyanne authorities in Addis Ababa.