SANAA, Yemen

A suicide bomber blew himself up Tuesday inside a Yemeni university in the Houthi-controlled province of Ibb, a security source told Anadolu Agency.

The source added that, according to prelimenary data, there were no reports of casualties.

Ibb had witnessed frequent explosions that targeted Houthi checkpoints and patrols in the past.

Fractious Yemen has remained in turmoil since last year, when Houthi militants overran capital Sanaa, from which they extended their influence to other parts of the country. 

In March, Saudi Arabia and its Arab allies began an extensive air campaign aimed at reversing Houthi gains and restoring Hadi’s government, most members of which had fled to Riyadh.

Last month, following a string of Houthi military reverses, Hadi -- along with several members of his Saudi-backed government -- returned to the war-torn country after six months in Saudi Arabia.