The son of a high-ranking military commander, Murad al-Awbali, was arrested Monday in Hodeida governorate, security sources have affirmed.
Mohammad Al-Awbali is charged with killing and wounding a number of policemen after a skirmish broke out with them at a checkpoint in Sana'a.
The security sources said that the Interior Ministry ordered to seize him, pointing out that he was involved in another case in Hodeida.
Three defendants accused of killing policemen were handed over to the authorities last month and that the main defendant, al-Awabli, was at large.
Yemen's interior ministry has repeatedly demanded to hand over al-Awbali, but it could not reach him due to the position of his father who is affiliated to the tribe of the former president Ali Abdullah Saleh.
Murad Al-Awbali, a loyalist to Saleh and his son Ahmed, is also himself accused of committing crimes against protesters in the southern province of Taiz.
Taiz protesters frequently demonstrated, demanding to hold al-Awbali accountable. Instead, he was appointed by Ahmed Ali Abdullah Saleh as a commander of the Republican Guard 62 Brigade after the protests calling for his arrest and prosecutions increased. A Yemeni appeal prosecution referred on Saturday Al-Awabali and other commanders to to the East Prosecution of Taiz to investigate them on charges of killing protesters in Taiz during protests that swept Yemen in 2011.
About 20 protesters including five children and four women were killed and 18 others were wounded as forces of the Republican Guard attacked a protest.