Nashik, May 5 () A 20-year-old pregnant woman died due to COVID-19 here, taking the toll in Nashik district of Maharashtra to 13, while four more persons tested positive for the infection on Tuesday, officials said. The woman, a resident of Bajrang wadi area of the city,was admitted in serious condition in the District Civil Hospital here on May 2, according to an official release.She died at the hospital after two hours, it said.Her swab report was received on Tuesday and it was found to be positive for the novel coronavirus, the release said.This was the first COVID-19 fatality reported from Nashik city, while the district's toll increased to 13, itsaid.Besides, four more persons - one each from Satana, Sinnar, Yeola and Malegaon towns - tested positive for coronavirus in the district on