With three more persons, including a 75-year-old man, succumbing to COVID-19 in Indore, the death toll in the city has reached 30, officials said on Saturday. The three men died during treatment at different hospitals in the city over the last three days. However, their test reports, which confirmed that they were coronavirus positive, were received this morning, an official of Government Mahatma Gandhi Memorial Medical College said. The other two deceased were aged 66 and 52, the official said.