A Houthi drone attack on a government military parade in the southern Yemeni city of Lahj killed at least five people on Thursday and left several high-ranking officers among the wounded, military sources told EFE.

Among those injured were the Yemeni army's chief of staff, his deputy and the head of military intelligence, all of whom are loyal to the country's internationally recognized President Abd Rabbuh Mansour Hadi, the sources said, speaking on condition of anonymity in order to protect their identities.

"At first, we thought it was a video-recording aircraft belonging to one of the television channels that covering the parade. But suddenly the drone exploded in front of the military leaders," a military official added.

One of the sources continued to say that in addition to the three senior commanders, other 15 high-ranking officers were injured in the attack on al-Anad military base, while the other did not specify if there were military officers included in the five fatalities.

The attack was carried out shortly after the start of the parade, which marked the beginning of the military year.

Houthi rebels claimed responsibility for the attack, saying the attack targeted "groups of invaders and mercenaries," according to the rebel-held al-Masira television channel.