Four members of Yemen's government forces were killed Friday when Saudi Arabia-led coalition "mistakenly" bombed their vehicle in Yemen's northeastern province of al-Jawf, a military official said.

According to the local military source who asked to remain anonymous, "an airstrike carried out by the Saudi-led coalition mistakenly struck a military vehicle east of Al Hazm area in al-Jawf."

He said that the eastern part of Al Hazm has been witnessing non-stop fighting between government forces and Houthi fighters during the past 24 hours.

He clarified that "a military vehicle of the government forces advanced towards the Houthi-controlled sites, and that an airstrike accidentally struck it, killing four soldiers and wounding three others."

The source indicated that confrontations are still continuing between the two sides and that the coalition warplanes launched a series of air raids against the Houthi rebels there.

The Iran-allied Houthi rebels control much of al-Jawf and government forces backed by the Saudi-led coalition are attempting to expel the rebels out of the province.

Yemen has been mired in civil war since late 2014, when the Houthi group seized control of much of the country's north and forced the Saudi-backed government of President Abd-Rabbuh Mansour Hadi out of the capital Sanaa.

The Saudi-led military coalition intervened in the Yemeni conflict in March 2015 to support Hadi's government.