Police in Queensland are searching for a man after alleged carjackings overnight. Multiple reports say the suspect is accused of stealing vehicles after threatening drivers with a knife. The incidents are described as occurring during the night, with drivers reportedly confronted and threatened before cars were taken. Authorities have not indicated the number of vehicles involved, the specific locations, or whether anyone was physically harmed, but they say the allegations centre on knife threats during the alleged thefts. Police are seeking the man believed to be responsible and are collecting information that could help identify him, including details from witnesses and those affected. Investigators have not provided an update on arrests or charges at the time of reporting. The search reflects ongoing law enforcement efforts to locate suspects involved in high-risk vehicle theft and threats. Further information is expected as police inquiries continue and as additional evidence is gathered.