Large caches of weapons were discovered in Chiang Mai Tuesday.
A combined force of army and police inspected the war weapons abandoned in front of an ex-army colonel in Mae Rim district on Tuesday.
Col Chuchai Puthipin, owner of the house, said he heard his dogs barking at something on Monday night but he did not go out to check because it was dark.
When he was about to leave the house in this morning when he found the weapons at the gate, so he alerted the authorities.
The weapons retrieved include nine landmines, bullets, other ammunition and TNT.