Nairobi, Jul 10 (IANS): A total of 133 foreigners, including two Pakistanis and a Briton, have been arrested by Kenyan police in a major security swoop, as the east African nation tightens security amid terrorism threats across the country, Xinhua reported.

The suspected illegal immigrants comprising two Pakistanis, one Briton, 81 Somalis, 47 Ethiopians and two Sudanese were arrested Sunday night in an operation intended to get rid of aliens residing in the country, said Nairobi regional police commander Anthony Kibuchi.

The suspects were arrested from various Nairobi residential estates in an operation dubbed, Fagia Wageni (Get rid off visitors).

They were to appear before various courts Monday and Tuesday over the offence of being illegally present in the country, the official added.

Kenya has enhanced security measures across the country to thwart terror threats being mounted by Al Qaeda affiliated group Al-Shabaab blamed for grenade and landmine attacks on Kenyans.

The country has been subjected to successive explosives attacks by Al-Shabaab operatives in the country following the onslaught by Kenyan soldiers on the Al-Shabaab in Somalia after the militia staged a series of attacks along the Kenyan coast.