The International Organization for Migration (IOM) said on Sunday that more than 164,000 people have been displaced since the beginning of this year in Yemen, which has been witnessing a bloody conflict for nearly six years.

"Since the start of this year, over 164,000 people have been newly displaced in Yemen, mostly by conflict," the international organization said in a statement, posted on its official Twitter account.

The organization said that the country's southeastern province of "Marib is the area where the highest displacement has taken place with over 12,500 families moving to crowded displacement sites in the city and surrounding areas."

Meanwhile, Yemen's official unit for the Internally Displaced People (IDPs) in Marib said that it recorded 54,400 displaced people during the period from Aug. 20 to mid-November.

The report confirmed that the IDPs are from various districts and villages located in Marib's southern part.

The government report indicated that the Houthis' recent military escalation against Marib is the main reason for the new displacement wave, noting that a number of IDPs camps have been affected or damaged.

The oil-rich province of Marib is witnessing a major military escalation, as the Houthis have penetrated over the past weeks and months into large areas of the government-controlled province that houses more than 2 million displaced people.

The government forces backed by the Saudi-led coalition are based in Marib to lead their military operations against the Houthis in the country's northern regions.