Myanmar troops stormed an anti-coup protest camp on Wednesday, a resident said, in a pre-dawn operation that local media said killed and wounded several demonstrators, as activists defied a bloody crackdown and internet blockade by the ruling junta.

Myanmar has been in chaos since a Feb 1 coup that ended a brief period of civilian-led democracy and sparked nationwide protests and strikes, despite the ruling military's use of lethal force to quell the resistance...