Chopper 7 due to heavy police presence in Wonder Lake near Tyron Grove Road

WONDER LAKE, Ill. (WLS) – A large police presence closed a street in the northern suburbs on Thursday.

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Chopper 7 was over the scene of the accident near Tyron Grove Road around noon.

The video shows two rescue helicopters in the area. It appeared two people were injured.

Investigators were seen speaking to nearby residents.

The details of the investigation were not initially known.

This is a developing story. Check back for updates.