According to the spokesperson, the doctor is likely to have acquired the infection from outside the hospital.
"A doctor, a nurse and one staff in support duty have tested positive. However, the doctor has in all probability acquired the infection from outside the hospital," the spokesperson said in a press statement.
Earlier today, Delhi Health Minister Satyender Jain said that 1,154 coronavirus cases have been reported in the national capital so far.
( With inputs from ANI )