Update: Baby found safe

A baby boy has been reunited with his family following a search for an alleged stolen vehicle in Keysborough this afternoon.

The white 2013 Toyota RAV 4 was stolen with the 11-month-old baby on board from Putt Grove about 2.10pm on 1 March, police say.

The baby and the Toyota were located in Cranbourne about 5.40pm, and a man was arrested.

A 46-year-old Frankston man is being questioned by police.

Investigations are ongoing, police say.

Any information or dashcam footage to Crime Stoppers on 1800 333 000 or crimestoppersvic.com.au.