Updated at 6 p.m. June 28 with additional information from Seagoville police.

Three Dallas police officers facing criminal charges in a gambling investigation turned themselves in Thursday, and a fourth has a warrant out for his arrest.

A criminal investigation into Senior Cpl. Edrick Smith, who was arrested in December on a gambling charge, led to charges against the four officers, according to a letter sent to City Council members Wednesday.

Smith faces new charges of money laundering and engaging in organized criminal activity, according to the letter from Assistant City Manager Jon Fortune.

From left: Rogers Williams, Edward Van Meter, Shannon Browning and Edrick Smith (Seagoville Police Department and Dallas County Jail)

Senior Cpls. Edward Van Meter and Rogers Williams and Sgt. Shannon Browning turned themselves in to Seagoville police around noon Thursday, Capt. Steve Davis said. All posted bond and were released.

Van Meter, a nine-year veteran of the department, and Williams, an 11-year veteran, were charged with gambling promotion. Browning was charged with organized criminal activity, gambling promotion and money laundering.

When Smith was arrested in December, he was charged with bribery, gambling promotion and misuse of official information, as well as a federal charge of fraud.

It was unclear Thursday afternoon if Smith had been arrested on the additional charges.

A December arrest warrant affidavit for Smith described Browning, who has worked in the department for 11 years, as his accomplice.

Smith was accused of bribing a sergeant with a gift card to keep an illegal gambling habit under wraps.

Smith asked the sergeant for a heads-up — specifically, to send him a "Go Cowboys" text — if police were planning to raid the illegal gambling business that he frequented.

He didn't know that the sergeant was recording their conversations to help investigators build a case against him.

Sgt. Latasha Moore, the officer who reported Smith to the Police Department's public integrity unit, was arrested earlier this month on a charge of gambling promotion.

Moore was accused of participating in a gambling operation at a convenience store on South Hampton Road.

A special agent working undercover for the state said the sergeant frequented the game room, court documents say, and two police detectives spotted her making a large deposit at an ATM across the street.

Sgt. Latasha Moore turned in a fellow officer accused of bribery but was later arrested herself. (Dallas County Jail)

Moore, a sergeant in the south-central patrol division, has been placed on administrative leave during criminal and internal investigations.

Smith, who also worked in south-central patrol, will remain on administrative leave, the letter said.

Browning, Van Meter and Williams were all placed on administrative leave. They were all assigned to the SWAT unit, police said.

Staff writer Tristan Hallman contributed to this report.