The Untied States offered on Monday to assist Yemen to conduct an investigation into the suicide attack which killed more than a hundred soldiers and injured hundreds others in the capital Sanaa.
The White House said in a statement U.S. Deputy National Security Advisor and Assistant to the President for Counterterrorism and Homeland Security, John Brennan, called Yemen's president Abdrabu Mansour Hadi and offered suitable US assistance to help the Yemeni authorities investigate the attack by Al-Qaida.
The two counties affirmed their desire to further cooperation to fight terrorism in Yemen, with Hadi vowing the Yemeni government is determined to prevent obstruction of the power-transition in the country, according to the statement.
The US has condemned the suicide bombing, which targeted central security forces during a military parade rehearsal a day before the unity anniversary.
According to media, Al-Qaida in the Arabian Peninsula AQAP has claimed responsibility for the attack which is said was as a response to the US war on its members in south Yemen.
The Yemeni army has recently stepped an offensive on Al-Qaida militants in Abyan to retake areas including key towns which were seized last year.
Military sources said on Monday the forces with support from tribal fighters have advanced on the militants clearing them from some areas. Still, more efforts are needed to clear the militants from all areas, the sources said.