A post-mortem examination on a man found dead in a public toilet in Harlow has proved inconclusive.
Essex Police said two of their officers were approached by a passer-by on Wednesday at about 1025 GMT and were told about a man who had collapsed and was not moving.
Officers found the man, who was not breathing, on the floor of a toilet near London Road and tried unsuccessfully to resuscitate him.
Police are still waiting for toxicology reports, but believe there is no evidence of foul play.
The man, who is believed to be in his early 30's, has yet to be formally identified.