Police in central Queensland are trying to determine if there are suspicious circumstances surrounding human remains found in Gladstone this morning.

A body was found in a drain on Gladstone-Benaraby Road at Toolooa.

Acting Inspector Luke Peachey said police had been alerted to the remains by council workers.

"It was reported by Gladstone council after an investigation was conducted in regards to a blocked stormwater drain," he said.

"A deceased person was found in that stormwater drain and as a result police were contacted.

"We're unsure of anything at this stage, but the body hasn't been recovered yet. That will be part of our investigations."

Inspector Peachey said police wanted to hear from anyone with information that may help the investigation.

"At this stage any information regarding any missing person, obviously contact us," he said.

"But at this stage we're trying to recover the body, and then we'll make a determination on whether we're still treating the matter as suspicious or not."