India, Jan. 24 -- The investigation in the alleged death of a jackal at the Delhi Zoo is likely to conclude next week, zoo director Sanjeet Kumar said on Friday, adding that CCTV footage of the last 30 days is being analysed and those accused of burning the animal are being questioned.

"The inquiry is expected to be concluded by next week. We have asked to preserve all the available CCTV footage of the last 30 days (if available before that) and analysis is being done by the inquiry officer," Kumar added.

Another official aware of the probe said all zoo staff members part of the beat and those accused of burning and removing the dead jackal have been interrogated.

On January 12, the National Zoo Workers' Union - in a letter to the Unio...