An investigation unfolding in Natick on Monday afternoon is related to the upcoming announcement of arrests of two Iranian men in connection with a deadly drone strike, 5 Investigates has learned.A source told 5 Investigates the FBI activity in Natick is connected to the charges being announced shortly in the deadly drone strike.

Robert Duffy, 42, of Charlestown, and 32-year-old Jeremy Folcik of Bridgewater were arrested on Long Island in Boston Harbor. Both men are charged with trespassing. Additional fines or charges could be added, Boston police said.

More suspected drone sightings in the eastern U.S. led to a temporary airspace shutdown at an Air Force base in Ohio and arrests near Boston's Logan International Airport, as elected officials increased their push for action to identify and stop the mysterious unmanned flights.

Two men were arrested on the Boston Harbor Islands allegedly flying drones near Boston Logan Airport Saturday night, Boston police said, amid a weekend of mysterious sightings. Robert Duffy, of Charlestown,

The arrests occur amid a number of reported drone sightings in the Northeast, including New Jersey, New York and Pennsylvania.

Two men were arrested in Boston over the weekend for flying a drone “dangerously close” to Logan International Airport as investigations into objects in the sky continue across the East Coast.

Boston authorities on Saturday night arrested two men accused of flying a drone dangerously close to Logan International Airport while a third suspect remains at large.

Two men were arrested Saturday after allegedly flying a drone “dangerously close” to the Boston airport, police said.