In northern Ethiopia, hundreds of Tigrayans, including wounded fighters, have been fleeing into Sudan after fighting between the Ethiopian federal army and Tigray People’s Liberation Front (TPLF) rebels in Shererina. The Tigray rebels have said the Ethiopian army launched the attack, accusing it of having “intensified its destructive actions and taken them to a higher level”. “The security tensions occurring at the border between Sudan and Ethiopia take place against the backdrop of the fighting between the Ethiopian army and the Tigray fighters in this area,” said Al Jazeera’s Osama Sayed Ahmad, reporting from Ad-Damazin, the capital of Blue Nile, Sudan. He said drone or artillery fire had caused explosions in several large refugee camps at the border, but casualty numbers were not available. AdvertisementResidents on the Sudanese side of the border also reported hearing explosions and sustained gunfire throughout the fighting.