Kenya attack
Kenya Defence Forces soldiers move behind a thicket in Garissa town in this photograph taken from a mobile phone April 2, 2015.Reuters

Al-Shabaab militants ambushed police vehicles in Kenya's Garissa County on Monday night, and it was feared that at least 13 policemen were killed in the attack after they went missing. 

However, Kenyan media have now reported that all the policemen are alive, but two are critically injured. 

Initial reports suggested that 20 policemen were killed in the latest Al-Shabaab attack in Yumbis, but Kenyan newspaper said that 13 officers were missing, and have now been accounted for.

"We have accounted for all the officers. Two were critically injured and they are being taken to Nairobi for treatment," Garissa County acting police commander Shadrack Maithya told The Standard

The Ministry of Interior and Coordination of National Government also tweeted that no policeman was killed in the attack. 

The attack came hours after three policemen were injured in the same region after their vehicle went over a landmine on Monday. 

According to Kenya's Daily Nation, the policemen were travelling to Yumbis where their colleagues were attacked earlier on Monday. 

Garissa has come under increasing attacks by the Al-Shabaab terror group based in Somalia, who massacred 148 students at the Garissa University in April. 

Last week, Kenyan security forced thwarted an attack on a village in Garissa near the Kenya-Somalia border.