NEW YORK (AP) Police said an 8-year-old boy was severely burned at a birthday party in Manhattan when an adult host poured flammable liquid onto a grill.

The boy is listed in critical condition at New York-Presbyterian Hospital/Weill Cornell Medical Center.

Police said the woman was hosting a party for her son Friday at her home dentistry office on East 36th Street and had planned to grill in a courtyard outside. But rain led her to take the grill indoors.

Police said she poured the liquid on the grill to get it hot enough to toast marshmallows. Flames shot out and burned the boy.

The woman has not been charged in the accident.