A giant firecracker was thrown in front of a ASTV satellite mechanic's home, 500 metres from the Kawila Army Camp in Chiang Mai's Muang district at 12.30am yesterday.
Inquiries by police revealed the cracker was thrown by unknown assailants on motorcycles, possibly reckless teenagers or people with ill-intent wishing to cause chaos.
Chiang Mai is still covered by the emergency law imposed after red-shirt riots in April and May.