ISTANBUL, July 29 (Reuters) - Turkish authorities detained an opposition Istanbul district mayor and five others on Wednesday over alleged irregularities in building and occupancy permits, broadcaster NTV reported.• Latest step in unprecedented legal crackdown on municipalities run by the main party opposing President Tayyip Erdogan.• Uskudar municipality Mayor Sinem Dedetas detained, as well as district deputy mayor, secretary, an architect, a business agent and a contractor, NTV said.

ISTANBUL, July 29 (Reuters) - Turkish authorities detained an opposition Istanbul district mayor and five others on Wednesday over alleged irregularities in building and occupancy…

Turkish authorities detained an opposition Istanbul district mayor and five others on Wednesday over alleged irregularities involving building and occupancy permits, broadcaster…