The shooter is then alleged to have entered the Erasmus Medical Centre before shooting dead a 46-year-old male teacher at the academic hospital.
According to police, the shooter is also alleged to have started fires at both scenes.
Police arrested the man at the hospital who was allegedly in possession of a firearm at the time of his arrest.
The motive behind the shootings is not yet clear, however, the police investigation is ongoing and the shooter is believed to be cooperating with police.
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