Two teenagers have opened fire at a school in south-eastern Brazil, killing at least seven students and one employee, police say. The shooting happened at about 09:30 local time (12:30 GMT) when the students were on a break at the state school in Suzano, near São Paulo. At least 10 other people have been wounded. Police say the hooded gunmen killed themselves after the attack. While gun crime is common in Brazil, shootings of this nature are not. The school has some 1,000 primary and secondary students, aged between six and 18.