At least six people were shot dead here by armed assailants in the latest episode of violence in Brazil's largest city, officials said Saturday.

In the deadliest incident, four young people were shot and killed Friday night in Sao Paulo's southern district of Cidade Ademar, a spokesperson with Sao Paulo state's Public Safety Secretariat told Efe.

In another shooting, a pedestrian was killed Friday night by two individuals on a motorcycle in the city's northern district of Vila Constanca.

According to the secretariat, one other person was killed in a shooting in the east-side district of Penha.

Brazilian media, meanwhile, reported that a suspected criminal was shot dead in a clash with security forces in the Sao Paulo suburb of Embu das Artes.

Between Thursday night and Friday morning, eight people were killed in Greater Sao Paulo, including a one-year-old boy who was shot while being taken home by his mother. The woman was wounded and is currently hospitalized.

Police in Sao Paulo say more than 250 homicides have been committed in the metropolis since the start of October.

Federal officials suggest the recent spate of attacks on law enforcement in metropolitan Sao Paulo has been orchestrated by jailed bosses of the First Capital Command, or PCC, the region's dominant criminal organization.

Elsewhere, in the southern state of Santa Catarina, authorities said criminals linked to the PCC set four buses on fire between Thursday night and Friday morning, while armed assailants fired shots at a police station and torched another bus on Friday night.

Some 47 suspects have been arrested in that state since the violence erupted on Monday. EFE