ADEN, Yemen, Sept. 27 (Xinhua) -- Yemen's Prime Minister Maeen Abdul-Malik Saeed urged the government's military forces Wednesday to remain vigilant against Houthi attacks.

Abdul-Malik made this call during a meeting with top military leaders in the southern port city of Aden, where he discussed with the generals the ongoing situation "amid escalating violence by Houthi rebels," according to the state-run Saba news agency.

Abdul-Malik expressed deep concern about the recent uptick in Houthi attacks, which openly defy regional and international efforts to bring peace and revive the stalled political process in Yemen.

Three Bahraini soldiers were killed and several others wounded when the Houthi rebels carried out a drone attack Monday against Bahraini troops patrolling Saudi Arabia's southern border with Yemen, the state-run Bahrain news agency reported on Wednesday.

The attack has drawn criticism from the Yemeni government, the Bahraini government, and the United Nations. However, the Houthis have not issued any comments on the attack.

Yemen has been embroiled in a devastating civil war since 2014, with the Houthis fighting against the internationally recognized Yemeni government. A Saudi-led coalition intervened in the conflict in support of the Yemeni government in 2015.