Intensified hostilities in Yemen forced more than 32,000 people to flee their homes in the past two months, the United Nations refugee agency warned.
They join some 2 million Yemenis already displaced by the war, the UNHCR said Thursday.
"The arrival of winter in Yemen, when temperatures can dip below zero degrees Celsius across a number of governorates, has worsened the hardship for many, particularly those displaced and living in informal settlements exposed to the elements with little protection against the cold," it said.
UNHCR spokeswoman Shabia Mantoo said flare-ups in fighting in the capital Sanaa, as well as the provinces of Hodeida on the Red Sea and oil-rich Shabwa in the south, had driven the displacements.
"We continue to see correlations between intensified hostilities and civilian casualties' displacement," Mantoo said on Twitter Friday.
More than 9,000 people have lost their lives in Yemen since a Saudi-led military coalition intervened in 2015 bombing the entire country for almost three years.
On the ground, Emirati-trained government troops and coalition forces have been advancing along the Red Sea coast in a drive to retake the port city of Hodeida, a key entry point for humanitarian supplies.
Source: News Agencies, Edited by website team