Carcasses of four crows were found at Shakti Sthal near Raj Ghat on Saturday taking the toll due to suspected bird flu in the national capital to 77.
Samples collected from the carcasses have been sent to the High Security Animal Diseases laboratory in Bhopal and results will come within two to three days, an animal husbandry department official said.
A commemoration programme to mark the death anniversary of former Prime Minister Indira Gandhi on October 31 will not be held at Shakti Sthal as it has been closed amid the bird flu scare, Congress has said.
Animal Husbandry Department Minister Gopal Rai had on Friday reviewed the situation at a meeting of the Coordination Committee, comprising officials of all the departments concerned and agencies such as PWD, Health and the MCDs.
Rai has directed agencies owning waterbodies to execute the relevant action plan to contain the flu, in the form of enhanced fumigation, timely reporting of mortality and disposing leftover meat in their areas of jurisdiction.
The National Zoological Park will remain out of bounds for visitors for the next three months during which the area will be sanitised. The DDA Park at Hauz Khas, that reported a spate of deaths as well, also remains shut.