Dutch police have arrested a gunman for allegedly killing three people, including a 14-year-old girl and her mother, in twin shooting incidents in Rotterdam city.

According to reports, a lone attacker was involved in the two incidents.

Police said the male attacker, 32, opened fire in a home before setting it alight, then stormed the city's Erasmus Medical Center on Thursday, reports BBC.

According to reports, the attacker was a student of Erasmus University.

A male lecturer was also also reportedly shot dead by the attacker.

Footage has emerged showing a man in camouflaged clothing being taken from the hospital building in handcuffs, BBC reported.

The motive behind the attack is still not clear.

A security guard who says he was first on the scene told the BBC it was a "shocking" day.

"It was terrible, terrible," he said, visibly shaken and not wanting to give his name.

He said that the gunman had not entered the medical centre through the main entrance.

Reacting to the incident, Dutch Prime Minister Mark Rutte wrote on X: "There is great dismay after the dramatic events in Rotterdam this afternoon. My thoughts go out to the victims of the violence, their loved ones and to all the people who have been in great fear. Many thanks to the people at the services for their actions and assistance on site."