TRIBUTES have flowed for a 15-year-old who died after she was hit by a car on the West Tamar Highway on Friday night.

Police said the teenager, who was an Exeter High School student, got off a bus near Collins Lane at Sidmouth at 6.10pm.

She walked behind the bus before starting to cross the highway and was hit by a south-bound Nissan Pulsar sedan driven by a man, 47, from Ravenswood.

The teenager was taken to the Launceston General Hospital in a serious condition and died in the intensive care unit later that night.

The family have requested the girl's name not be released at this stage.

Friends paid tribute to the teenager on social media yesterday, saying she was beautiful and a friend to everyone.

"She's up there in heaven now I'm sure," one friend posted.

"She was a strong, bright and beautiful girl."

Another woman posted that she was in disbelief at such a tragedy.

"To her family, whom one could not imagine the heartbreak they are going through .. strength, love, family, cherish and embrace them, remember all there was and hold it in your heart, no one can take away memories," she posted.

"Your smile will never be forgotten."

West Tamar Mayor Barry Easther was also among those to pass on condolences.

"It's an extremely sad day for the family, a terrible thing to happen," he said.

"They are a family who is well known and very involved in the community."