Description
The suspect in an alkali attack in south London was convicted of a sex offence in 2018 and was later granted asylum after three attempts.
Police are looking for Abdul Shakoor Ezedi, 35, who was last seen in north London on Wednesday evening.
A mother and her three-year-old daughter hurt by the corrosive substance could have suffered "life-changing" injuries in the attack.
Police have warned people not to approach Ezedi and to instead call 999.
The 31-year-old woman and her daughter remain in hospital, along with her older daughter, eight.
Five police officers were injured as they responded, as were four members of the public who tried to help.
The attack took place near Clapham Common at about 19:25 on Wednesday.
The suspect attempted to escape the scene in a car but crashed into a stationary vehicle, then ran.
One witness described seeing the suspect lift a young child over his head and throw her onto the ground like a "ragdoll", telling the BBC the incident was like a "horror movie".
A community worker who knows Ezedi has appealed for him to give himself up, and to get medical help for his injuries.
Azad, who helps refugees in Newcastle where Ezedi lives, described the 35-year-old as polite and respectful.
In 2018, Ezedi was convicted of one charge of sexual assault and one of exposure, before being granted asylum in 2020.
He received a nine-week jail term suspended for two years for the sexual assault and, for the exposure, 36 weeks' imprisonment to be served consecutively, also suspended for two years.