UPDATE: Rescue crews have found the lost hikers on Signal Mountain Tuesday night.

The hikers were found safe.

No one was injured.

PREVIOUS STORY: Rescue efforts are underway on Signal Mountain for two lost hikers Tuesday night.

The rescue began around 7:30 p.m. on the Suck Creek Trail Head.

Hamilton County EMS spokeswoman Amy Maxwell says the two 21-year-old men were forced off the hiking trail by flooding, caused by heavy rainfall earlier in the day.

Maxwell says rescue personnel have been talking to the hikers on their cellphones, but have not been able to find them.

The hikers say they do not know their location because they moved to a non-established trail to dodge the raging waters. The hikers also reported to rescue personnel that they are trapped on one side of the mountain rapids.

Maxwell says due to the loss of sunlight, rescue crews are hiking as quickly and as safely as possible to locate the hikers. 

Signal Mountain has requested a mutual aid response for additional manpower from Walden's Ridge Emergency Services, Special Tactics and Rescue Services (STARS) and Red Bank FD to cover Signal Mountain's fire district.

Stay with WRCBtv.com for updates to this story.