Police are following up and assessing the information they've received since making a fresh appeal a week ago into the cold case suspected murder of Perth woman Lisa Brown.
The State Government announced a $250,000 reward last Friday for information about the disappearance and suspected murder of the 19-year-old.
The mother of two disappeared in Northbridge in the early hours of November 10, 1998.
She was last seen walking down Brisbane Street and turning into Palmerston Street.
She was wearing casual blue denim jeans, a black T-shirt and black high-heeled boots.
Cold Case Serious Crime Squad detectives have launched a fresh investigation into the case.
Police recently approached the State Government to request a reward, following an extensive review of the case file.
The reward will be offered for information which leads to the apprehension and conviction of the person or persons responsible for Lisa's disappearance.
Detective Senior Sergeant Jeff Christmass, from the Cold Case Serious Crime Squad, said there had been a good response from the public since last week's appeal.
"There's been a pleasing response from the public following Friday's reward announcement and appeal for information regarding Lisa Brown's disappearance and suspected murder," he said.
"Cold Case Serious Crime Squad detectives are now assessing and following up the information provided.
"If there are still people in the community who have information who haven't yet come forward we urge them to do so now. "
Terry Brown, Lisa's father, released a brief statement last week after the reward was announced.
"Obviously people must know something about what happened to Lisa," he said.
"We've been waiting 19 years now for answers and really would like some sort of closure. If anyone does know anything please help the police and call Crime Stoppers."
Anyone with information about the case can still call Crime Stoppers on 1800 333 000 or visit the Crime Stoppers website.
All calls and information can be made anonymously.