GENEVA, July 1 (Xinhua) -- Three UN agencies on Monday condemned an overnight attack on the compound of the International Organization for Migration (IOM) in eastern Nepal, and warned that continued violence could affect aid delivery to refugees from Bhutan.

    In a joint statement, the IOM, the UN High Commissioner for Refugees (UNHCR) and the World Food Program (WFP) said they were "shocked and outraged by this senseless attack."

    The attack "is aimed at undermining the humanitarian efforts by the UN agencies and the international community to aid refugees from Bhutan who have been through decades of suffering in camps in eastern Nepal," they said.

    On Monday evening, the office and bus parking area of the IOM in Damak, eastern Nepal, were hit by three explosions.

    The office, which is used to process refugees for resettlement to a third country, suffered minor damages. But no one was injured.

    The blasts are the latest in a series of violent incidents targeting IOM Damak in recent months, the statement said.

    In May, two IOM buses were attacked by unidentified men on the road when shuttling refugees between Khudunabari and Sanischare camps and IOM Damak for resettlement interviews and procedures.

    In total, nearly 108,000 refugees from Bhutan are living in seven camps in eastern Nepal.

    Since the beginning of this year, some 1,350 refugees have departed for resettlement countries such as the United States, Australia, Canada, Denmark, the Netherlands, New Zealand and Norway.

    However, certain pro-repatriation groups in the camps are opposed to resettlement and have threatened others to boycott it.

    For now, refugee assistance in the camps will continue, as will the processing of resettlement cases.

    However, the agencies warned that continued intimidation and attacks on IOM may eventually have consequences on all program delivery for the refugee operation, not just the resettlement component.