Teens arrested over Victorian crime spree

Two teens have been charged after a crime spree, including threatening to behead one of their victims, in Melbourne's southeast.

The pair was arrested after police chased them through bushland in Dandenong when they set a stolen car alight just after 9.15am on Tuesday.

Police allege the pair are to blame for numerous armed robberies in Springvale, Dandenong and Noble Park since Saturday.

During one of the robberies it's believed the duo got into a car and threatened to behead the driver if he didn't give them his phone, keys and the car.

A 19-year-old Moe man is expected to face Melbourne Magistrates Court on Wednesday and a 17-year-old has been remanded in custody to face a childrens court at a later date.