At least three people including an adolescent girl were killed and 11 others wounded Friday when a 16-year-old shooter wearing Nazi symbols opened fire on two schools in southeastern Brazil, officials said.
Authorities in the city of Aracruz, in Espirito Santo state, said the shooter fired on a group of teachers at his former school, killing two people and leaving nine others wounded.
He then left that school -- a public primary and secondary school -- and went to a nearby private school where he killed an adolescent girl and wounded two other people, officials said.
Authorities have arrested the shooter, said Governor Renato Casagrande, who declared three days of mourning in the state.
"He was a student at (the first) school until June, a 16-year-old minor. His family then transferred him to another school. We have information he was undergoing psychiatric treatment," Casagrande told a news conference. He said some of the survivors' lives remained at risk from their wounds. "We are rooting and praying for them to recover," he said.
Security camera footage aired on Brazilian media showed the shooter running into the school dressed in military-style camouflage and brandishing a gun. He then sprinted through the hallways, sending staff fleeing in terror as he began firing shots.
Investigators said he had a swastika on his fatigues and that they were looking into whether he had links to any extremist organisations.
Casagrande said the boy appeared to have planned the attack carefully, breaking in through a locked door and skirting the school's security guard.
Read more on FRANCE 24 English
Bolsonaro contests Brazil's election: President demands electronic votes be annulled
Brazil electoral court rejects Bolsonaro's push to void votes
Bolsonaro supporters call on Brazil military to intervene after Lula victory