Gunmen shot dead radio journalist Eduardo "Ed" Dizon - who was on his way home after hosting a daily news commentary show in the southern Philippines - on Wednesday night, Kidapawan police said.
Mr Dizon, 58, suffered five gunshot wounds from the shooting in Kidapawan City, 954km south of Manila.
He was driving home when two gunmen on a motorcycle stopped beside his car at a corner road and shot at him, city police chief Lieutenant Colonel Maria Joyce Birrey added.
There was no immediate information on whether the killing was related to Mr Dizon's work, but colleagues said he often reported on corruption and scams in his radio program.
Mr Dizon is the 13th journalist to be killed since 2016, under the administration of President Rodrigo Duterte, according to the National Union of Journalists of the Philippines (NUJP) - an organisation committed to secure interests of the Filipino working press.
NUJP released a statement on Thursday condemning the killing of Ed Dizon.
The Philippines is ranked as one of the world's most dangerous places for journalists by press freedom groups, including the New York-based Committee to Protect Journalists.
In 2009, 32 media workers were among more than 50 people killed in a local politician's convoy heading to a rally in the southern region of Mindanao.
The alleged masterminds are currently on trial.
