Glenorchy Detectives are investigating a mass car torching at Claremont in Hobart's north on Tuesday night. 

Five vehicles went up in flames on Main Road at around 9:15. 

Following multiple triple zero calls from alarmed residents, fire crews attended and managed to prevented the flames from taking hold on a carport which was left singed. 

Police said as of 9:30 on Wednesday morning no offenders had been charged in relation to the firebombing. 

Later on Tuesday night an accidental fire also damaged a shed on Tenth Avenue at West Moonah.