Police are investigating an alleged assault on a 14-year-old female by a 12-year-old girl at Flaxmere Library yesterday.
Flaxmere Community Centre posted a message on social media and said the library had closed "in the wake of a nasty attack on a young member of the public".
A Hastings District Council spokesperson said the library reopened this morning and confirmed no staff members had been injured.
Police say the 14-year-old was not seriously injured. They believe they know who was involved and are speaking with them.
The 12-year-old will be referred to Youth Aid.
It is not believed any other individuals or weapons were involved.
The attack comes 10-days after Kelly Donner died after suffering serious injuries outside a tavern in the Hastings suburb.