The attack comes amid an uptick in cross-border attacks on 'civilians and civilian objects' in Saudi Arabia, Arab coalition spokesman says.
A string of incidents has raised alarm about a possible resurgence of the group, but experts say Lebanese forces have largely demonstrated they are equipped to handle it.
Iran's IRGC has transferred expertise to the Houthis, including technology for drones the group has used to carry out cross-border attacks.
Khalid bin Umar al-Batarfi, who led al-Qaeda in the Arabian Peninsula for just under a year, was arrested in al-Mahrah province in October, a new report reveals.
Iraqi forces, backed by the international coalition, killed ISIS's Iraq 'wali' and 10 other members in a partnered operation.
Hardline women are forcing teenage boys to take wives so they can have children, raise them on ISIS ideology and send them off to restore the group's so-called caliphate.
Once a prominent figure in Iraq and Lebanon, the Hizbullah operative vanished from sight when the US offered a reward for information.
Fuelled by the Houthis, the crisis in Yemen has led to more than 17,500 civilians killed and injured, and 10 million are at risk of famine.
Threats reported at a high-level security meeting sparked tensions in a country where past assassinations have been linked to Hizbullah.
The Iran-backed group's self-described goal is to depose the Bahraini government and pave the way for Iran to exert greater influence in Bahrain.