Five teens arrested after high-speed pursuit in Melbourne's southwest

Five teenagers have been arrested, including two 13-year-olds, after being pursued by police for over 40km at speeds of more than 140km/h in Melbourne's southwest last night.

Police tried to stop a stolen red Nissan Pulsar sedan travelling east on Blackshaws Road in Altona North about 9.25pm last night, the Herald Sun reports.

The driver, a 17-year-old boy from Lalor, reportedly sped away with police pursuing the car onto the Princes Freeway.

The pursuit continued for about 30 minutes before the teens left the car on Avalon Rd and ran into nearby paddocks.

They were rounded up by a police helicopter and arrested.

The driver, as well as two 15-year-old girls from Truganina and Craigieburn, a 13-year-old girl from Werribee and a 13-year-old boy from Reservoir, are in custody and being questioned by police.