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. A Cambodian provincial official said clashes resumed there again early on Friday morning.

At least 16 people have been killed and tens of thousands have been displaced as fighting extended to a second day.

Indian embassy in Bangkok has issued travel advisory for citizens travelling Thailand as it fights what is said to be the bloodiest exchange of fire with Cambodia in over a decade. See the list