Photo: The Canadian Press

About 7,500 Congolese fleeing violence have arrived in Uganda since the beginning of June, the United Nations refugee agency said Tuesday, urging the international community to give more toward humanitarian efforts.

People are leaving Congo at a rate of 311 a day, adding pressure on Uganda's already overstretched facilities, said UNHCR spokesman Andrej Mahecic in Geneva. The situation is made worse because Congo is battling an outbreak of Ebola and there are fears the refugees could be carrying the deadly virus.

The refugees are running away from clashes between two ethnic groups — the Hema and the Lendu — in Congo's northeast Ituri province, an area long plagued by violence and lawlessness.

More than 160 people have been killed in two weeks of the violence in several villages of Ituri, according to the local governor.

Recent arrivals from Congo "speak of extreme brutality. Armed groups are said to be attacking villages, torching and looting houses, and killing men, women and children," Mahecic said in a statement.

Uganda has long said it keeps its doors open to all refugees.

Most Congolese are fleeing via Lake Albert from Ituri, where an estimated 300,000 people have been displaced since early June, according to Mahecic.

A refugee reception centre in Uganda is currently home to 4,600 new arrivals, 1,600 more than its maximum intended capacity, he said, noting that "the pace of new arrivals means needs far outstrip what humanitarians are able to deliver."

The violence has been taking place in a remote area of Congo near South Sudan and Uganda where the U.N. says there is limited access for humanitarians. Thousands of people are said to be sleeping in the open and without any kind of food aid.

Authorities believe the perpetrators were militia fighters from the Lendu community. Congo's military believes they are linked to Mathieu Ngudjolo, who was acquitted of war crimes at the International Criminal Court in 2012.