A bomb exploded, another defused in southern Yemen near two government offices in Abyan Governorate.
Sources said that first bomb was exploded nearby criminal investigation department's building in the governorate making a hole in a fence outside, causing no injuries.
While the other bomb, which made of a mine attached to a timer, was defused after being planted and set to explode near the fence of the office of a Central Organization for Control and Auditing in Zenjubar district in Abyan.
Yemeni authorities accused the Sothern Mobility of aiming to threaten security and stability in the country.
On July, 28 four Yemeni forces were killed, another wounded in an ambush in Abyan governorate.
On July, 24, twelve people were killed and several injured from both sides in clashes between government forces and protesters in Abyan governorate in southern Yemen.
Mass Demonstrations over army pensions turned violent in Aden in 2007 and job protests in the south degenerated into riots last year. Some southern leaders have openly called for secession.
At least 36 people had been killed since the protests erupted in late April.