Bangkok, July 24 -- Thailand on Thursday announced that it is closing all its border points with Cambodia after at least three people have been injured in a "targetted attack on civilians" by rockets of Cambodian forces that struck its border area of the two countries, the Royal Thai Army said on Thursday.

The development marked an escalation of long-standing dispute between the neighbouring countries.

Deputy Defence Minister has confirmed combat and granted full operational authority to the military, the National Broadcasting Services of Thailand said in a social media post.

Nikorndej Plangkur, Director-General of the Department of Information and Spokesperson for the Ministry of Foreign Affairs, made the announcement addressing a pre...