Definition: In this task, you will be shown a passage. You need to write a fill-in-the-gap question based on your understanding of the events that might be inferred from the passage. Your question should be answerable based on the passage and only have one correct answer. Show the gap in your question with a _ .
Input: Washington (CNN) -- An alleged Somali pirate leader has been indicted for the takeover of the yacht Quest and the kidnapping of four Americans who subsequently were killed during the incident. Mohammad Saaili Shibin, 50, appeared at a detention hearing in federal court in Norfolk, Virginia, on Wednesday afternoon after the indictment against him was unsealed. He will remain in federal custody. "Today marks the first time that the U.S. government has captured and charged an alleged pirate in a leadership role -- a hostage negotiator who operated in Somalia," said U.S. Attorney Neil MacBride in a written statement. MacBride went on to say the arrest and charges against Shibin should "send a strong message to all pirates that they are not beyond the reach of the FBI, whether they board the ships or remain on-shore in Somalia."Four Americans died during the hijacking of a yacht in FebruaryThe purported leader of alleged pirates was arrested in Somalia on April 4A prosecutor says the indictment marks the first U.S. prosecution of a pirate leader
Output:
FBI agents were at the scene of the arrest, though law enforcement officials would not provide details beyond that the FBI worked with _ forces on the ground.