ABUJA, Nigeria (AP) — The spokesman for retired Gen. Muhammadu Buhari says the former military dictator has won Nigeria’s presidential election but fears “tricks” from the government.

Garba Shehu told The Associated Press that the opposition candidate’s polling agents across the country say Buhari has succeeded in defeating President Goodluck Jonathan.

He spoke as vote counting gives Buhari, 72, a commanding lead.

“As for the election, we have won it,” said Shehu. “We are not out of the woods yet, we don’t know what tricks the government is going to play.”

Britain and the United States warned Monday of signs of political meddling in the final tally from Saturday’s election.