Kenyan President Uhuru Kenyatta was sworn in for a second term on Tuesday, shortly before riot police teargassed the convoy of opposition leader Raila Odinga, who promised supporters he would be sworn in himself on Dec. 12.

Such a move would only deepen divisions opened by the extended election season in Kenya, a Western ally in a volatile region. Months of acrimonious campaigns and sporadic clashes have already blunted growth in East Africa’s richest economy.

At a lavish inauguration attended by the heads of many African nations, Kenyatta did his best to paint a picture of a country moving beyond that divide.

“The elections are now firmly behind us … I will devote my time and energy to build bridges,” he told a rapturous crowd of around 60,000 supporters as he was sworn in for a second, five-year term in a sports stadium in the capital Nairobi.

But, he warned, Kenyans needed to “free ourselves from the baggage of past grievances, and … keep to the rule of law”.

Such words may ring hollow to citizens accustomed to the government ignoring reports on corruption from the country’s auditor-general and documentation of hundreds of extrajudicial police killings every year from human rights groups.

Last year, Kenyatta angered many Kenyans by saying he wanted to tackle corruption but his “hands are tied”. His government has also promised to improve police accountability, but an independent watchdog has managed to convict only two officers of murder despite thousands of brutality complaints.

On Tuesday, at least one Odinga supporter was killed and three others were injured, a Reuters witness said. Other witnesses said the man had been shot by the police.

A statement from Odinga said five people were shot, including his daughter’s driver.