A man is being questioned by detectives following a suspected arson attack in Barry.
Emergency services were called out to a fire near the former O'Brien's pub on Holton Road at around 2am on Friday morning.
South Wales Police said a 37 year-old local man was arrested on suspicion of arson with intent to endanger life and remains in custody.
The fire was brought under control in just under four hours.
A South Wales Fire and Rescue Service spokesperson said: "Crews, three appliances and two water bowsers from Barry, Penarth and Maindee attended the scene of a fire involving a mixed-use commercial and domestic three-storey property with basement."
"Four breathing apparatus, two hose reel jets, one covering jet, two short extension ladders, and cutting gear were used to extinguish the fire. All persons were accounted for."

Swapping date night for drysuits at Barry Dock RNLI
13,900 French Rugby Fans fly into Cardiff Airport ahead of Six Nations Fixture
Vale Councillor blasts school funding in the county
Bear Field Skate Park set for major upgrade as part of new Placemaking Plans
New apprenticeship courses in construction to be introduced in Wales
Former Penarth Bank could become a cafe
New poll shows majority of Welsh voters lack voting confidence ahead of Senedd Election
Construction hub secured for rail upgrades
Prolific thief banned from Holton Road
Cowbridge: plans for more holiday lodges
Man dies suddenly in Romilly Park
Cash boost for Sully Primary School
Speed limits reduced despite objections
Concern over imported chicken in school meals
A48 closed after three-vehicle collision
Rhys unveils red bench 'in living memory'
Barry: plans lodged for 70-home development