The attorney general made the announcement after a woman was arrested by the state Election Fraud Unit late last week for multiple counts of election fraud, according to a statement from his office.

"We will prosecute voter fraud every time we find it," Paxton, a Republican, wrote on Twitter over the weekend in reference to the case. 

"Currently, our office has over 500 cases waiting to be heard in court."

While Paxton didn't provide any more information about the cases, he said that "voter fraud is real" and that "Texans deserve to know their vote is legally and securely counted."

According to the release from his office, which provided scant details about the case, Monica Mendez was arrested and booked into the Victoria County Jail on June 23. It came after a grand jury returned an indictment on seven counts of illegal voting, eight counts of unlawfully assisting a voter, eight counts of unlawful possession of ballots, and eight counts of election fraud.

Her case, however, wasn't related to the 2020 election, the release said, but to a 2018 local election. The Texas secretary of state referred Mendez to the attorney general's office.

Referring to the Mendez case, Texas Gov. Greg Abbott suggested that his office would continue to pursue laws that are designed to bolster security around elections. The governor several days ago announced a special session of the state legislature to pass a number of measures relating to voter fraud laws, critical race theory, and how the state handles bail bonds.