Complex sentence: The town is divided by the Ibar river with the Serb-majority northern part of the city, known as North Mitrovica, which became a separate municipality in 2013, following the North Kosovo crisis.
Split into simpler sentences: The town is divided by the Ibar river, with the northern Serb-majority part of the city becoming a new municipality known as North Mitrovica. The Serbian part became a separate municipality in 2013, following the North Kosovo crisis.