Three foreign nationals have been arrested in New York on suspicion of trying to join the Islamic State.

According to the FBI, two of the men threatened to kill police officers and FBI agents if they were unable to travel to Syria.

They reportedly posted to Uzbek-language websites in recent months, and pledged to kill US President Barack Obama.

The three men - aged between 19 and 30 - have been charged with conspiracy to provide material support to a foreign terrorist organisation.