The city of Kabul forms one of the 15 districts of Kabul Province. As the provincial capital, it forms a municipality ("shārwāli") which is further divided into 22 administrative districts called municipal districts or city districts ("nāhia"), which coincide with the official Police Districts (PD). The number of city districts increased from 11 to 18 in 2005, and then to 22 by 2010 after the incorporation of Districts 14 and 19-22 which were annexed by Kabul Municipality from surrounding rural districts. The city limits have thus substantially increased. Due to demarcation disputes with the provincial administration, some of these new districts are more administered by the provincial districts than the municipality.