Amid uncertainty over rising Bird flue, 10 ducks were found dead at east Delhi's Sanjay Lake on Saturday, a day after 17 crows were reported dead at the Central Park of Mayur Vihar Phase III, Dr Rakesh Singh, Department of Animal Husbandry said here. The lake will be shut until further notice, the official added. Over the last few days, at least 50 birds, including 35 crows, have died in Delhi, adding to the threat of a bird flu. ''We received information about the death of crows in Dwarka, Mayur Vihar Phase 3 and Hastsal village in west Delhi. However, it is yet to be ascertained if bird flu infection is the reason,'' Singh had said earlier. He added that the first test reports will be available on Monday. The collected samples will be sent to the National Institute of High Security Animal Disease, ICAR, Bhopal, on Saturday, a statement from the department said. On Friday, the Centre said that bird flu has been confirmed so far in six states viz Kerala, Rajasthan, Madhya Pradesh, Himachal Pradesh, Haryana and Gujarat. 200 crows died in Delhi's Mayur Vihar due to Bird flu Assam bans poultry imports due to outbreak of Bird Flu Bird flu wreaks havoc in Haryana, one and a half million chickens to be killed