Umar Abdulmutallab, the Nigerian national who tried unsuccessfully to blow up a US airliner on Christmas day, has caused a great deal of concern for Yemeni authorities.
Mutallab is suspected to have been radicalised while being in Yemen and the possilbe presence of al-Qaeda in the country has added to the worries. Yemeni authorities have decided to increase security measures by sending forces to several provinces throughout the country and staging a number of anti-terrorist training exercises.
Troops also performed mock raids on Saturday in the outskirts of Sanaa, the capital of Yemen.
Al Jazeera's Mohammed Vall reports.
Content on this website is for general information purposes only.
Your comments are provided by your own free will and you take sole responsibility for any direct or indirect
liability. You hereby provide us with an irrevocable, unlimited, and global license for no consideration to
use, reuse, delete or publish comments, in accordance with Community
Rules & Guidelines and Terms and