A plastic bottle containing an unknown substance exploded on the front porch of a Northside home late Thursday night.

The home is located on Devan Lee Drive, which is north of Oceanway.

The homeowner heard a loud "pop" at the front door and discovered a bottle that exploded.

There were no injuries or damage to the front porch.

Officers are not sure who placed the bottle on the front porch and why they did it.