Escalation from all angles took place in Saa'da as fifty people were killed and nearly one hundred and twenty injured as locals in Sa'ada witnessed the start of a sixth war in the war torn governorate.

A local source told the Yemen Post that violent clashes are ongoing in different areas of Sa’ada province where casualties for Sunday exceeds 15 deaths and over 45 injured.

The source added that Houthis have become stronger especially when their fellow rebels were released from government prisons. Meanwhile, Houthi followers are surrounding a government complex in Munabeh district.

Further, government forces are also surrounding a large group of Houthi loyalist in Saa’da according to sources.

On Saturday, three Yemeni security soldiers were killed and another two injured in an attack that targeted a control center located in the northwest part of the city. In separate clashes, eight Houthi loyalists were killed in continuous clashes in the city as the death toll increases everyday from both sides.

Also, 15 people were killed and over 60 others injured, mostly soldiers when a powerful explosion rocked Suliman mosque in Sa'ada.

The explosion resulted from explosives packed into a motorbike and it was detonated when worshippers started to leave the mosque following performing Friday prayer.

Local sources in Sa'ada indicated that the mosque's preacher and Imam Askr Zu'ail, who also works as a manager of the 1st Armored Brigade and the North-west Military Area Commander Brig. Ali Muhsen Al-Ahmar's office, was targeted.

Askr himself told Al-Jazeera Satellite Channel that he was targeted by the explosion, mainly because of his opposing position of Houthis, hinting that Houthi militia is to blame for the attack which aims to undermine the country's stability and security.

Meanwhile, security sources and Houthis exchange accusations and each party accuses the other of standing behind the attack.

For his party, the Houthi field leader Abdul Malik Al-Houthi denied such allegations and told BBC that they are against any acts that targets worshippers and worshiping houses.

A source at the Yemeni Interior Ministry announced on Saturday it stopped a group of armed people at a checkpoint outside Sa'ada city suspecting them of being behind the incident, especially when they were in a car parking before the mosque and left shortly after the blast.

The source added that they launched an investigation with the arrested people to know their motivations.

This came following the failure of the former presidential committee in charge of Sa'ada ceasefire agreement signed in Qatari Capital Al-Doha under Qatari sponsorship.