NAIROBI, June 18 (Xinhua) -- Kenyan police have increased surveillance in all social joints during the World Cup season in the wake of terror threats from al-Shabab militants.

Inspector General of Police Joseph Boinnet said on Monday that he has directed all police commanders to boost security around video parlours screening World Cup football matches taking place in Russia to ensure security of the patrons.

"The Inspector General has instructed all County Commanders to heighten surveillance around video parlors screening World Cup football matches with a view to ensuring that club owners and their patrons have requisite security measures in place," Boinnet said in a statement issued on Monday.

The police chief ordered that all prospective patrons be frisked before being granted admission to help stop any criminal and terrorist activities.

He said the measures are aimed at ensuring that football fans are protected from all types of security risks that include terrorism and other hazards.

"All club owners and their patrons are requested to cooperate with the Police as it is in the interest of their customers," he added.

The latest directive comes after Kenya Medical Research Institute (KEMRI) Research Officer Peter Adada Kasumba was shot and killed by thugs while watching a World Cup match in Kisumu in Western Kenya.

Kasumba, who was a principal scientist, was among football fans who were watching a World Cup match at a local entertainment joint when four armed thugs stormed the joint.

In July 2010, al-Shabab carried out twin blasts in the Ugandan capital, Kampala, killing 74 people as they watched the World Cup final match.

One bomb ripped through an Ethiopian restaurant, while the other struck at a rugby club where the crowd was usually a mix of Ugandans and foreigners.