Border Patrol agents in one sector of the overwhelmed southern border have arrested more than two dozen gang members and criminals — including sex offenders — this week.

In a press release, Customs and Border Protection (CBP) announced the apprehension of 21 gang members, two sex offenders, and three illegal aliens with prior convictions including for robbery and battery.

Agents in Rio Grande Valley on Aug. 27 located a Salvadoran Tango Blast gang member with a prior conviction for aggravated robbery in the U.S. among a group of five illegal immigrants in Roma. A day later, agents nabbed a Salvadoran 18th Street gang member with a prior conviction for aggravated homicide.

On Monday, agents in Brownsville arrested a Mexican national who had been convicted this year and sentenced to two years in jail for indecency and sexual contact with a child. It was not clear how he was released. 

MEXICANS CHARGED WITH MURDER OF NORTH CAROLINA SHERIFF'S DEPUTY IN US ILLEGALLY: ICE

U.S. border police

Border Patrol agents have encountered dozens of gang members and other criminals at the southern border. (Getty Images)

On the same day, agents near Sarita, Texas, stopped a Guatemalan national who had an outstanding warrant in Houston for indecency with a child.

Also this week agents located a Sureno gang member with convictions for battery and immigration offenses, as well as a Paisas gang member with a prior conviction for evading arrest. Separately, CBP said that agents have arrested 20 gang members associated with both the 18th Street and MS-13 gangs.

Border Patrol agents have been dealing with a massive number of migrants hitting the border each month. There were nearly 200,000 migrant encounters in July, with more than two million encounters in fiscal year 2022 so far -- a new record.

Meanwhile, more than 500,000 illegal immigrants have evaded Border Patrol this fiscal year, raising concerns that there may be criminals and gang members among those getting past agents. The Biden administration has claimed the border is "secure," an assessment that FBI Director Christopher Wray did not directly endorse when asked by lawmakers.

ICE ARRESTS ILLEGAL IMMIGRANT WITH CHILD SEX CRIME CONVICTION, MULTIPLE DEPORTATIONS

So far this fiscal year, agents have stopped 627 gang members compared to 348 in FY 2021 and 363 in FY 2020. Meanwhile, Border Patrol has stopped 9,381 criminal migrants, compared to 10,763 last fiscal year and 2,438 in FY 2020.

On Friday, Fox News Digital confirmed that two Mexican nationals accused of murdering a North Carolina sheriff’s deputy were in the country illegally, although it was not know when they entered the U.S.

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Separately, Immigration and Customs Enforcement (ICE) announced last week that it had arrested a Mexican illegal immigrant with a prior conviction for indecency with a child and multiple deportations.

Last month, CBP detailed how agents had arrested multiple sex offenders, including a Guatemalan national who had previously been arrested and charged with lewd and lascivious acts with a child under 14 by force, a Salvadoran MS-13 gang member with prior criminal history for carnal knowledge of a child and a Mexican with a prior conviction for lewd and lascivious acts with a child.