ISIS-inspired teens considered other targets before Gracie Mansion protest: Sources

The two Pennsylvania teens charged with attempting to carry out what authorities described as an ISIS-inspired attack in New York considered other targets before driving into Manhattan late Saturday morning with homemade bombs, law enforcement sources told ABC News.

Investigators searching a storage unit in Bucks County, Pennsylvania, where the teens are from, discovered a notebook in which the teens wrote about soft targets like shopping centers, the sources said. No specific target was mentioned.

The NYPD said the teens brought improvised explosives to Gracie Mansion, the official residence of the mayor of New York City, where an anti-Muslim protest clashed with a counter demonstration.

The notebook and other evidence suggested Emir Balat and Ibrahim Kayumi had been planning some kind of an attack for at least a week, the sources said.

Read more: ABC News