An offence was registered againstthree persons after they were found roaming on the streets in Dharavi slum area of Mumbai, which has emerged as one of the hospots of COVID-19, amid the ongoing lockdown, an official said on Wednesday.The accused were found abusing and manhandling one another, the official said."The incident took place at Shahunagar, where the area is declared as a COVID-19 red zone," the official said."As they were roaming in the area without any essential work, a case was registered against them under IPC sections 188 and 269, and section 51 B of Disaster Management Act at Shahunagar Police Station," he said.