At least four people were injured in clashes that erupted between the security forces and revolutionaries in Yemen’s southern Taiz province on Thursday.

The clashes took place a day after Taiz governor, Hamoud Al-Soufi, said a ceasefire agreement, reached months ago, had been activated to contain the situation in the violence-rocked city.

On the eve of the signing, reports said fierce clashes took place between the army and revolution defenders, but no casualties were reported. 

Locals said more forces deployed to the streets, though the ceasefire called for withdrawing all armed groups and forces from the streets.

A massive demonstration was staged on Thursday night in which tens of thousands of people urged the opposition to form the national security on the specific date on August 17, called for the ouster and trial of the remaining officials in the falling regime and condemned all crimes by the armed and security forces loyal to President Saleh. 

They also confirmed that the peaceful uprising will continue and condemned the attempts of the regime to drag the country to security and economic destruction.

In the district of Arhab on the outskirts of the capital Sana’a, the army was said to have expanded the military operations targeting new villages and leaving more people killed and injured.