Yemen's security services have tightened security measures at the entrances of the capital Sana'a, an online website of the Interior Ministry stated on Sunday.
The ministry added that it tightened security measures to prevent the infiltration of terrorists to the capital and arrest the wanted by security authorities.
It further said that it circulated a list of the wanted to security forces positioned at the security belt of Sana'a, stressing that vehicles coming to Sana'a are inspected thoroughly.
It further stated that security teams continuously conduct field visits to evaluate the level of performances and security measures taken to avoid any security breaches.
Killings and other criminal acts have remarkably increased in Sana'a due to revenge and armed disputes as armed men exploited insecurity in Sana'a to carry out killings and tribal revenge.
After a year of pro-democracy protests that swept the country and after formation of an interim government, Sana'a witnesses a state of loose security as crimes and weapon carrying increased.
The Interior Ministry has declared a ban on weapons carrying inside cities, but armed men are still seen roaming with AK-47 assault rifles, hunting rifles and pistols inside Sana'a streets.
Though Yemenis live on less than two dollars a day, Yemen has the second most heavily armed population in the world, unofficial statistics say.
An average civilian casualty rate of about 4000 people per year due to gun violence, the statics say.
Yemen's interior ministry estimates there are about 60 million firearms in Yemen, or about three for every citizen. Government efforts to take weapons out of peoples' hands have been unsuccessful.