The opposition leader of the Democratic Republic of the Congo, Etienne Tshisekedi, who insists he won the recent election, is calling for the arrest of incumbent president and declared winner Joseph Kabila.

“I consider myself from this day on the president elected by the Congolese people,” he said, according to the Congo News Agency. 

Speaking to his followers, Tshisekedi told them to “stay calm and serene to maintain a good business climate for foreign investments,” the news agency said.

Tshisekedi said that they need to look for Kabila, “wherever he is in the country, and bring him to me alive.”

“Whoever brings me Kabila here, handcuffed, will receive a very big prize,” Tshisekedi added. 

On Dec. 9, the country’s election commission declared Kabila, 40, the winner, and he is slated to be sworn in for another term on Tuesday. Kabila has been ruling the country since he took over from his father who was assassinated in 2001.

The highly criticized election results giving Kabila another five-year term prompted rioting and looting in the capital, according to AFP.

Tshisekedi, 79, said last week that he will take the oath of office, according to the news agency.

A number of independent observers, including the U.S. State Department and the Carter Center, said the elections were flawed or not done properly. The polls were the first independently run election in the country since the end of a nasty civil war and the bloody aftermath, which left 4 million dead.