Sanaa, March 20 (IANS): At least 88 people were killed and over 100 others wounded on Friday in four bombing attacks in Yemen, sources told Xinhua news agency.

Two suicide bombers attacked two mosques in Yemen's capital Sanaa during Friday prayers, killing at least 55 people, while at least 33 others were killed in two bombing attacks on a government building and a mosque in the Shia Houthi stronghold of Saada province.

In Sanaa, the bombers detonated explosives at two mosques controlled by the Shia Houthi group, a security official said on condition of anonymity, adding that most of the dead were supporters of the Houthi group.

The first attack hit prayers at Badr mosque in southeastern Sanaa, killing 35 people, while the second bombing occurred at Hashoush mosque in the northeastern part of the city, killing at least 20 others, he said.

This is the second bombing attack in Sanaa this year after an Al Qaeda car bombing attack against a police academy killed at least 50 cadets on January 7.

In Saada province, at least 15 Houthi fighters were killed around Friday noon when a bombing attack on a government building in Saada city, the provincial capital of Saada province in northern Yemen, a Houthi source told Xinhua.

Meanwhile, at least 18 people, most of them Houthi followers, were killed during Friday prayers when a suicide bomber blew himself up at a mosque in Saada city, he added.

Dozens of people were wounded in the two separate attacks, the source added.

The Shia Houthi group took over control of Sanaa last September and met strong resistance in the central and southern regions from powerful Sunni tribes and the Sunni-dominated Al Qaeda network.

On Thursday, tribal militia fought against security forces supported by the Houthi group in the southern port city of Aden, the second biggest city in the country, killing at least 15 people.