An FBI agent was attacked during a search of a Staten Island home on Wednesday, a law enforcement official told CNN.
The search was connected to an investigation stemming from the weekend arrest of a man accused of conspiring to provide material support to ISIS.
A man attacked the agent with a knife, the source said. The agent is not believed to have been seriously hurt.
The suspect was arrested and appeared in federal court in Brooklyn Wednesday.
Over the weekend, federal agents arrested a New York aeronautics student who allegedly was behind an ISIS-inspired plot with others to build and detonate a bomb.
Munther Omar Saleh, a 20-year-old U.S. citizen, is charged with conspiring to provide material support to ISIS.
According to an unsealed criminal complaint from the Eastern District of New York, Saleh, from Queens, was planning to detonate an explosive device in the New York metro area.
An FBI affidavit says agents were conducting surveillance of Saleh when he and another unidentified suspect tried to run toward the vehicle FBI agents were using to track him.
The Saleh case remains under investigation, and a law enforcement official has said more arrests are expected.
