There has been violence in Senegal after the country’s top legal body gave the go-ahead for veteran President Abdoulaye Wade to stand for a third term – and rejected the candidacy of singer Youssou N’Dour.

Trouble broke out in several cities including the capital Dakar, where a policeman was reported to have been killed.

Now opposition parties and other groups are calling on people to march on the presidential palace today.

“They should expect it to be worse than June 23,” said one man, referring to the date seen as a landmark for the protest movement. “From tomorrow onwards, our youth will come out here in the streets. The ruling is unacceptable.”

Opponents of the 85-year-old leader say the constitution sets a limit of two terms on the president.

Wade, who came to power in 2000 and was re-elected five years ago, argue his first term should not count as the restriction was brought in afterwards.

But many are also angry that the constitutional court rejected the presidential bid of world music star Youssou N’Dour. The singer, it said, had not collected enough signatures.

N’dour has been quick to point the finger at the president, while insisting that he himself remains a candidate pending an appeal.