Hawke's Bay Hospital's maternity wing has been reopened after a chemical spill

Fire and Emergency was called just after nine this morning - and closed the wing temporarily as it worked to clear it in a safe manner.

It says the chemical spilt was Formalin, a toxic, colourless solution that is produced by dissolving formaldehyde gas in water.

Police were also at the scene to help keep the area clear and help evacuate some of the patients inside.

Fire and Emergency says all parts of the Hastings hospital are safe and there is no risk to patients, public and staff.