Warplanes, reported to be from the Kenyan air force, have hit the Gedo region in Somalia, apparently in retaliation for the killing last week of 147 people at a Kenyan university campus, the Somali website Garsoor News reported Monday, according to dpa. Gedo, located near the border, is believed to house camps of al-Shabaab, the Somali group which claimed Thursday's attack. Aircraft were hitting rural areas suspected to be al-Shabaab hideouts, according to the report. A source within the Kenyan police force who did not want to be named said the planes were Kenyan. He said several al-Shabaab militants were killed. The air strikes started on Sunday, but the intended targets may have dispersed in anticipation of the bombing, according to Garsoor News.