An Ethiopian government air strike has injured many university students in the capital of the northern Tigray region, rebel forces say in a Facebook post.
The Facebook post was accompanied by several photos that appeared to show adults with injuries in Mekelle.
Reuters was unable to authenticate the photos or reach independent sources for verification because all phone lines and internet to the Tigray region is down, although a few leaders have satellite connections.
Debretsion Gebremichael, who heads the Tigray People's Liberation Front (TPLF), also said Mekelle had been bombed.
The government did not immediately respond to requests for comment although it has previously denied bombing civilian targets.
The air strike took place about 12.45pm, the Facebook post said, in the Meles Academy University, where "it resulted in heavy casualties of many university students and other civilians".
The post said it was the fourth air strike on Mekelle.
The government has previously denied bombing the city centre and said it has only attacked military targets on the outskirts.
A two-week-old war between the federal government and the forces of the northern Tigray region has killed hundreds, sent 30,000 refugees into Sudan and worsened a humanitarian crisis in the Horn of Africa.
