TERRELL COUNTY, Texas (NewsNation) — Law enforcement along the southern border are sounding the alarm, as sources confirm more than 150,000 “gotaways” have been recorded since Oct. 1.

A sheriff in one of the busiest immigration sectors says he’s seeing more crossings and noticeably fewer resources.

Terrell County Sheriff Thaddeus Cleveland says his officers are feeling the absence of Texas Gov. Greg Abbott’s Operation Lone Star between El Paso and Del Rio as resources are being shifted to the El Paso sector to respond to an increase in migrant crossings.

“Texas decided to send more personnel out El Paso to help bolster that portion of the border,” said Cleveland. “And a lot of that personnel came from Sanderson and Terrell County. And that’s had an effect on us because now we’re starting to pick up again, and we just don’t have the resources here to assist Border Patrol.”

Cleveland told NewsNation that they would normally have about 15 officers working day shifts but that is now down to about three to four people a day.

Cleveland said he relies heavily on state and federal partners as he’s responsible for 2,300 square miles of border-area territory. At current staffing, his department is only able to intercept about 50% of individuals who have crossed the border into Terrell County.

Texas Department of Public Safety Lt. Chris Olivarez said limited resources aren’t unique to Terrell County.

“That’s what makes it very challenging with this whole border situation,” he said. “We’re trying to cover as much ground as we can in Texas. And of course, Texas is very large. We cover the majority of the border in Texas but trying to be in every single area and once really is impossible. But the fact is that we do have the majority of our resources dedicated to areas where we see increased activity.”