An 18-year-old man has been arrested in the American city of Chicago on suspicion of plotting a bomb attack.
The FBI says Adel Daoud had planned to detonate a car bomb outside a bar in the city.
He had been tracked by the FBI after posting comments online about violent jihad and the killing of Americans, the BBC reports.
He was arrested on Friday in a sting operation in which agents posing as extremists gave him a phoney bomb.
Mr Daoud was charged with attempting to use a weapon of mass destruction and attempting to damage and destroy a building by means of an explosive.
There have been several convictions based on stings in recent years, but Muslim groups and civil rights groups have expressed concern at the use of such tactics.