A man has been arrested after three people were shot dead in the Dutch port city of Rotterdam. 

Police say a gunman opened fire at the Erasmus Medical Centre and a nearby apartment earlier today, although it is not clear if the two incidents are linked. 

A 14-year-old girl was among the three people shot dead.

A 32-year-old man has been detained as police investigate whether he was involved in both shootings. 

Police said there were no indications of a second shooter. 

The number of victims have not been announced, as Rotterdam police said they were informing family members before releasing further details. 

Fires also broke out at both locations, local authorities said. 

More to follow...