Cambodia has asked for assistance from ASEAN to help impose a ceasefire on the tense border with Thailand. The plea comes after a request for UN peacekeepers was rebuffed earlier this week.Cambodian Foreign Minister Hor Namhong said in Phnom Penh after returning from a UN Security Council meeting on the matter in New York. He will seek for assistance from ASEAN to settle a row centred on a 900-year-old temple that erupted into four days of armed clashes earlier this month, leaving at least 10 people dead. The two neighbours are at odds over a border area near the Preah Vihear temple, a 11th-century clifftop ruins that belongs to Cambodia. The designation of the ruins as a World Heritage site had sparked the ire of Thai nationalists. Both countries blame each other for the crisis. Cambodia has insisted on the need for third-party mediation, while Thailand has repeatedly said it wants to resolve the row bilaterally.