Cambodian officials have reported another 12 people killed as a result of the ongoing border dispute with Thailand, with the death toll on both sides now standing at 32, as fears grow that the Southeast Asian neighbours may become engulfed in an extended conflict.

Thai and Cambodian leaders are meeting in Malaysia in an urgent effort to resolve deadly border clashes that entered a fifth day despite mounting international calls for peace.

The fighting first flared Thursday after a land mine explosion along the border wounded five Thai soldiers.