Protests have broken out in the Senegalese capital of Dakar and in the southern city of Mbour over continuing power shortages. In Dakar, several government buildings were set on fire including the offices of the state electricity company, according to the (BBC). Security forces in Mbour fired tear gas to disperse thousands of demonstrators. The trouble over power cuts, which have lasted 48 hours in some areas, come just a week after rioting against the president. Broken bottles, scattered debris and burning tyres littered the streets, witnesses said. In Mbour, about 80km southeast of Dakar, electricity company premises were also a target. Witnesses said the Senelec offices were wrecked and cars outside attacked. Senelec has been unable to satisfy demand for electricity for years.