Vietnamese embassy staff demand stranded workers provide about $470 for their ticket home.
Many migrant workers, including Burmese, are vulnerable to labor abuse, say advocates.
The junta has repeatedly broken a ceasefire called after a massive earthquake.
The attack comes a day after a school bombing that killed nearly 20 children.
Medical centers nearby are overwhelmed because many victims are severely injured, sources said.
Despite a ceasefire extension valid until May 31, junta bombs killed 4 civilians, including a child.
RFA has covered the rollercoaster of Myanmar’s modern history for an audience thirsty for independent news.
Attacks on 3 villages have displaced thousands, said an ethnic administration.
Children under five are living on just 5 US cents a day, aid groups said.
Junta airstrikes have killed nearly 300 people since the ceasefire began, the exiled civilian government said.
