Thailand has launched airstrikes against Cambodian military targets along their disputed border, in an escalation of their deadly border dispute. Follow for live updates

Clashes are ongoing in at least six areas along the border, the Thai Defense Ministry said. The first clash Thursday morning happened in an area near the ancient Ta Muen Thom temple along the border of Surin and Cambodia’s Oddar Meanchey province. Here’s what to know about the dispute between the two Southeast Asian neighbors.

Clashes between Thai and Cambodian troops at their disputed border have killed at least 12 people, Thai authorities say. The fighting marks an escalation of a dispute between the two South East Asian neighbours that dates back more than a century.