Myanmar airstrike kills 60 people at concert, says Kachin separatist group

Reported attack by military comes days before Asean meeting to discuss widening violence in country

Myanmar's military has killed 60 people, including musicians, in a devastating airstrike that targeted a concert held by a rebel faction of the country's minority Kachin ethnic group, according to organisers and a rescue worker.

The reported attack came three days before south-east Asian foreign ministers were due to attend a special meeting in Indonesia to discuss the widening violence in the country.