The UN refugee agency on Saturday said it is reviewing the way it operates in Pakistan and assessing what adjustments need to be made to ensure staff security, following Tuesday's bomb attack in Peshawar in which two UN staffers were killed.
But, the UN High Commissioner for Refugees (UNHCR) added that no question arises of pulling out of the country.
"The agency has been grappling with the operational challenges posed by the security risks in Pakistan for some time," William Spindler, spokesperson for the UNHCR told reporters.
"Despite the difficult security environment, we have continued our work in the region helping 1.7 million Afghan refugees and more recently some 2 million internally displaced Pakistanis.
"In the wake of recent attack in Peshawar, however, we are reviewing the way we operate and assessing what adjustments need to be made to ensure the safety of our staff," Spindler said adding "there is no question of pulling out."
"We are committed to helping the millions of displaced people in the region."
Tuesday's suicide bombing at the Pearl Continental Hotel in Peshawar, the capital of the North West Frontier Province (NWFP) killed at least 18 people, including two UN staff members.