The Fort Worth Fire Department has called off the recovery mission for a missing kayaker who was last seen Saturday on the Trinity River.
The decision was made after the second full day of searching without locating Edgar Castro.
Castro and a friend were kayaking along the Trinity River Saturday when the men ran into trouble.
Castro's friend was able to get back to shore, but Castro hasn't been seen since.
Search and rescue teams searched for the man through the weekend with no luck.
On Sunday, search and recovery teams expanded their search along the Trinity River from River Oaks Boulevard to the Tarrant-Dallas county line on Sunday, covering nearly 40 miles of river.
Then, on Monday, brush trucks were used to search along the banks of the Trinity River while other personnel kept watch at water crossings.
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Additional support came from the air where a helicopter was used to search for the missing man.
Officials have asked other jurisdictions downstream, including Arlington, Grand Prairie, Irving, Euless and Dallas to keep an eye out for the man's body as fast-moving water may have carried him down river.
Fort Worth Fire Department spokesman Lt. Kyle Falkner said the department encourages people to always wear a personal flotation device, PFD, that is approved by the U.S. Coast Guard.
It is not known if Castro was wearing a life preserver.
NBC 5's Josh Ault contributed to this report.