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.

Armed clashes on the remote, disputed border between Cambodia and Thailand have killed at least 12 people on Thursday, in a dramatic escalation of tensions that threatens to erupt into a broader conflict.

Thailand and Cambodia traded accusations Saturday of fresh attacks as deadly border clashes entered a third day, leaving at least 33 people dead and more than 168,000 displaced, as international pressure mounted on both sides to reach a ceasefire.