according to aljazeera.....

An al-Shabab military spokesman says the armed
group has killed about 25 Kenyan police officers in a
village north of the town of Garissa, where fighters
killed 148 students in April.
Sheikh Abdiasis Abu Musab said on Tuesday that 20
officers were killed when al-Shabab fighters
ambushed them on Monday night in Yumbis village,
70km north of Garissa, while more officers were
killed when a police vehicle hit a landmine planted
by the fighters, Reuters reported.
"We took all their weapons. There were some
Kenyan forces that escaped in the course of the
ambush fighting," he said, adding that five police
vehcles had been burnt.
Al Jazeera's Mohammed Adow said Garissa police
had confirmed that 20 officers had been killed in the
attacks.