Following up on a "Hetq" report of January 23 that swarms of dead fish were spotted in the Hrazdan River, the RoA Ministry of Nature Protection stated today that preliminary water samples from the affected site show traces of active chlorine. The Ministry says that the chemical could have destroyed the fish and over aquatic animals. The case has been sent to the RoA Police Department's regional office in Kotayk for a follow-up investigation.