The new Emir of Kano, Lamido Sanusi, has denied that there is a family rift over his appointment, following clashes in the Nigerian city.
His supporters have clashed with those of a rival candidate - the son of the former emir, who died last Friday.
Mr Sanusi was appointed on Sunday to the post, making him Nigeria's second most senior Muslim leader.
He was sacked as central bank governor this year after making accusations of massive fraud in the oil sector.
In his first public comment since taking the throne, Mr Sanusi said: "I want to assure you that
there is no family rift at all, we're all together, and we belong to the same family".
He said that the trouble was the work of "outsiders [seeking to] to destabilise our state".
Rival supporters carrying weapons such as machetes and knives clashed and set up burning barricades on the streets but the situation is now reported to be calm.