U.S. Immigration and Customs Enforcement officials, during a four-day enforcement surge that ended last Thursday, arrested 16 people in Austin and Waco who they said were in the country unlawfully, federal authorities announced late Monday.

In total, 52 people were arrested in South and Central Texas as part of the surge, ICE officials said.

The arrests were separate from the ICE enforcement operation that President Donald Trump decided to postpone last weekend, ICE spokeswoman Leticia Zamarripa said.

"ICE deportation officers carry out targeted enforcement operations daily nationwide as part of the agency’s ongoing efforts to protect the nation, uphold public safety, and protect the integrity of our immigration laws and border controls," ICE said in a statement.

During last week's enforcement surge, ICE deportation officers arrested nine people in the Rio Grande Valley, seven people in San Antonio and 20 people in Laredo, in addition to the 16 people in Austin and Waco. Of those arrested, 46 were men and six were women. Forty-seven are from Mexico, four are from Honduras, and one is from Cuba, ICE officials said.

Of the 52 people, 35 had been either charged or convicted of offenses including traffic offenses, drug crimes, illegal re-entry after deportation, driving under the influence, assault, theft, resisting officers and aggravated assault, ICE officials said.

ICE officials shared examples of those who were arrested, including a 25-year-old man from Mexico who was arrested in Waco. A judge ordered his removal in February after he was convicted of driving while intoxicated and then later charged with evading arrest or detention with a vehicle, ICE officials said. Once his criminal case is fully adjudicated, he will be remanded to ICE custody for his removal from the country, ICE officials said.

Trump on Saturday decided to delay for two weeks a planned nationwide immigration sweep to deport people living in the United States illegally. The move came after U.S. House Speaker Nancy Pelosi, D-Calif., called Trump on Friday and asked him to call off the raids.

The fact that the sweep was to begin Sunday was leaked to the media late last week, and the leaked details made ICE leaders nervous about officers' safety, according to administration officials who spoke on condition of anonymity.

This article contains additional material from The Associated Press.