Five sailors, including two Russians, have been kept in quarantine as suspect Omicron cases, Goa health officials said on Monday.

Dr Utkarsh Betodkar, an epidemiologist with the state Directorate of Health Services, said that the five Omicron suspects had tested positive for Covid-19, after they sailed to Mormugao Port Trust onboard a ship which had embarked from South Africa's Cape Town on October 31.