RIYADH, May 29 (Xinhua) -- The Saudi-led coalition announced on Wednesday the launch of another airstrike on Houthi positions in Yemen's southern province of Dhalea, Al Arabiya TV reported.

The coalition urged the residents in the province to stay away from the targeted sites, saying the operation is in line with international and humanitarian law.

All measures have been taken to protect civilians, it added.

This is the second airstrike announced by the coalition this month, after the first was conducted on May 23 against Houthis' weapons warehouses and posts in the Mountain of Attan in Yemen's capital Sanaa.

The Saudi-led war in support of the Yemeni exiled government against the Iran-backed Houthi militia entered its fourth year in March this year.