A Dallas woman faces a felony charge after her dog attacked a 13-year-old boy earlier this year, police say.
It's the second arrest in a week related to dog attacks in Dallas as the city tries to address its loose-dog problem.
Dallas Animal Services quarantined Luz Alvarez's bull terrier after it attacked a person in March, according to police. The dog was returned to its owner, police said.
But in late May it escaped an enclosure and sank its teeth into the legs of Jesus Galvan, who was playing hide-and-seek outside his family's East Dallas apartment.
Officers used a stun gun to subdue the dog, which died during the altercation, police said.
Alvarez, 31, was indicted by a Dallas County grand jury. She was booked into jail Tuesday on a charge of attack by dog.
State law makes it a criminal offense when animal owners know their dogs are dangerous and fail to restrain them. The crime becomes a felony when a dog seriously injures or kills someone.
Last week, officers arrested Alicia Hernandez, 64, a resident of the Love Field area. It was the first arrest by Dallas police in a case alleging dangerous dog ownership.
Police say Hernandez's 65-pound pit bull attacked two women — one in July and one this month.
Dallas Animal Services seized the dog after the first attack and returned it to the owner after a quarantine, investigators said.
No arrest has been made in the case of Antoinette Brown, a homeless veteran who was mauled to death by a pack of dogs in May. Her death spurred Dallas city officials to tackle its loose-dog crisis.
A new study funded by donors trying to solve the problem estimates that nearly 9,000 dogs roam southern Dallas. Meanwhile, so few loose dogs were found in northern Dallas that researchers said they couldn't estimate how many wander the streets there.