Taranaki police have been dealing with a serious incident at a property in Stratford.

A police spokesman confirmed units, including New Plymouth CIB staff, were at the scene overnight Friday/Saturday but would not comment further on what may have happened.

He also declined to comment on whether a death may have occurred at the address.

"We're still trying to ascertain what has happened," he said.

He said more information about the incident would be made available Saturday morning as inquiries continued overnight.

An ambulance spokeswoman said they were called to the scene by police about 9.50pm Friday night.