A man lobbed a grenade in a busy market on Friday in Yemen’s second city Taez, killing at least six people, officials said, while a blast in the capital Sanaa claimed one more life.

Ten others were injured in the attack in Taez, staged when the market re-opened in the evening , an official in the Taez governor’s office said.

“A man on a motorbike threw a grenade, killing six people and injuring 10 others,” he said, adding that the motive behind the attack was not yet clear.

Another person was killed and one more was injured in a blast in a southern neighbourhood of Sanaa when an explosive device placed near an Internet cafe went off, locals and a doctor said.