Kurdish militants from Committees for the Protection of the Kurdish People seized the border post on Saturday, after three days of clashes with an al-Qaeda-linked group which had held the crossing since March.
According to the armed Kurdish group YPG, fighting carried on through the morning.
The Yarubiya post and surrounding areas in the northeast were taken from the Islamic State of Iraq and the Levant terrorist group which is an offshoot of al-Qaeda in Syria; They had seized it from the army.
An Iraqi intelligence official confirmed that Kurdish rebels held the crossing point, adding that Baghdad brought reinforcements to the area to prevent any spillover of violence.
"There were heavy battles in which all types of weapons were used," said the Iraqi official on condition of anonymity in line with regulations. "Iraqi forces are ready to repel any attack."
Kurdish groups control a large swath of northern Syria. Clashes between their fighters and militants have killed hundreds of people in the past months.
RA/SHI