Prime Minister Joseph Muscat offered on Wednesday a major reward to anyone with information about the killing of prominent journalist Daphne Caruana Galizia, saying no expense would be spared in solving the crime.

Caruana Galizia, who regularly lambasted Muscat in her popular blogs, was killed on Monday by a bomb, which tore apart her car as she was driving away from her home on this southern Mediterranean island.

Dutch forensic experts and investigators from the FBI are helping the local police probe the murder, which shocked Malta and drew condemnation from around Europe.