The UN Human Rights Office says it has “credible information” of at least 18 deaths across Myanmar on Sunday during a crackdown on anti-military protesters. Unofficial sources say the death toll could be anywhere between 25 and 30, as quite a few protesters were reported missing. More than 30 protesters were wounded, rescue workers and the Burmese media said.

“The deaths reportedly occurred as a result of live ammunition fired into the crowds in Yangon, Dawei, Mandalay, Myeik, Bago and Pokokku. Tear gas was also reportedly used in various locations as well as flash-bang and stun grenades,” the UN Human Rights Office said in a statement. “We strongly condemn the escalating violence against the protesters in Myanmar,” UN Human Rights Asia spokesperson Ravina Shamdasani said.