At least 29 killed in attack on Myanmar refugee camp

Attack on displaced persons camp near Laiza killed at least 29, including women and children.
Camp located near headquarters of Kachin Independence Army, which is engaged in conflict with Myanmar's military.
Nature of attack remains unclear, with reports suggesting use of artillery, drones or jet fighters.
Military junta denies responsibility, while rebel groups and civilian government accuse military.
Attack marks one of the deadliest against civilians since military coup in February 2021.