The director of the Yemeni Defence Ministry hospital told Yemeni authorities none of Vietnamese doctors was working when the assault took place.
Earlier sources said two Vietnamese doctors were among 52 people killed in the attack on the Yemeni Defence Ministry complex.
The Vietnam Foreign Ministry had contacted the International Organisation for Migration and the United Nations High Commissioner for Refugees, verifying the information.
The Vietnamese embassy in Saudi Arabia is working with relevant Yemeni agencies to keep a close watch on the case.
