New York (CNN) -- A pair of brush fires broke out within two hours of each other Wednesday afternoon on New York's Staten Island, closing part of a national park.
One of the blazes -- a six-alarm fire -- was burning in the Fresh Kills section of the Gateway National Recreation Area, according to National Park Service spokeswoman Jane Ahem.
The other fire, a four-alarm blaze, was burning in a residential neighborhood nearby.
According to the New York City Fire Department, no injuries had been reported and no structures were damaged as of Wednesday evening. The ignition sources were unknown, the fire department said.
The Gateway National Recreation Area encompasses a wide swath of grassland on Staten Island and is normally used for recreational activities.