A teenager will appear in court later charged with throwing acid at a woman on her doorstep.
The 28-year-old victim suffered horrific injuries to her face and upper body after acid was sprayed in her face in Romford, northeast London.
Scotland Yard said the 15-year-old boy is in custody and will appear at Barkingside Magistrates' Court on Monday.
He is charged with throwing corrosive fluid on a person with intent to do grievous bodily harm.
The woman - who is called Tara but has asked for her surname not to be used - answered the door to a stranger who asked to speak to "Michelle" shortly before 9pm on April 30.
He returned about 30 minutes later and squirted an acidic substance in her face from a bottle, according to police.
The woman managed to shut the door after the assault and rinse her face with water while an ambulance was called.
Her pet dog - a long-haired chihuahua - also required treatment but the animal is not thought to have suffered any long-term injuries.
The teenage suspect was arrested on Friday night