A Lufthansa flight from Chicago to Germany was diverted to Boston after a man stabbed two teenage passengers with a metal fork, authorities said Monday.

Praneeth Kumar Usiripalli, 28, was charged with one count of assault with a deadly weapon with intent to do bodily harm in connection with the incident Saturday, according to the U.S. Attorney's Office in Massachusetts.

Usiripalli was arrested after the plane landed at Boston's Logan International Airport, the prosecutor's office said in a statement.

It wasn't immediately clear whether Usiripalli has a lawyer to speak on his behalf.

A spokesman for Lufthansa did not immediately respond to a request for comment.

A 17-year-old passenger who was asleep in a middle seat awoke to Usiripalli standing over him with the fork following a meal

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