Geneva: Military operations against the militant groups have left over 100,000 people, mostly women and children displaced in northwest Pakistan this year, the UN High Commissioner for Refugees (UNHCR) said.

UNHCR spokeswoman Melissa Fleming said on Friday an estimated 101,160 people have been displaced since January 20 in the Khyber Agency region.

Fleming said the recent increase in the intensity of the fighting was driving even larger numbers of families to flee the region to Jalozai camp, where the UNHCR and the World Food Program is providing them humanitarian aid.

The UNHCR has registered 1,721 families on Wednesday alone, and the average since March 17 has been nearly 2,000 families each day, the refugee agency said.