Dutch crime reporter Peter R de Vries has been shot and seriously wounded on a street in Amsterdam, national broadcaster NOS reported, adding he had been taken to hospital.
Police said in a statement a man had been shot in Amsterdam without confirming his identity.
"A man has just been shot on Lange Leidsedwarsstrat," the police statement said, referring to a street near one of the city's largest public squares.
"Multiple emergency services have been summoned and police are searching for the suspect or suspects."
They asked witnesses to call police.
Amsterdam's Parool newspaper cited witnesses as saying Mr De Vries had been shot in the head.
Mr De Vries, 64, is a celebrity in the Netherlands, as both a frequent commentator on television crime programmes and an expert crime reporter with sources in both law enforcement and the underworld.
He is known for investigative work following the 1983 kidnapping of beer magnate Freddy Heineken.
He became known in the US for his work investigating the disappearance of teenager Natalee Holloway in 2006.
Mr De Vries has been subjected to threats from the criminal underworld in the past in connection with several cases.
In 2013, Willem Holledeer, the Heineken kidnapper, was convicted of making threats against Mr De Vries.
Holledeer is currently serving a life sentence for his involvement in five murders.
In 2019, Ridouan Taghi, currently on trial for murder and drug trafficking, took the unusual step of making a public statement denying reports that he had threatened to have Mr De Vries killed.
