{"id":"9bce9178-cd01-4a2c-bc30-3502690a9a48","url":"https://abcnews.com/US/feds-investigating-letters-suspicious-substances-multiple-congressional-offices/story?id=137291867","domain":"abcnews.com","outlet":{"name":"ABC News","country":null,"cred":null,"lean":null,"curated":false},"title":"Feds investigating letters with 'suspicious substances' sent to congressional offices","plainHeadline":"Feds investigate letters with suspicious substances sent to congressional offices","rewrite":{"model":null,"at":null},"summary":["Federal law enforcement agencies are investigating multiple letters with suspicious substances.","Letters were mailed to various addresses nationwide, including congressional offices.","The FBI, U.S. Capitol Police, and U.S. Postal Inspection Service are involved.","A notice was sent to Senate staff and described to ABC News.","The investigation is ongoing and developments are expected."],"topics":["Politics"],"lang":"eng","publishedAt":"2026-10-15T16:09:31.000Z","ingestedAt":"2026-10-15T16:21:37.348Z","story":"https://brief.concise.news/story/d7022095-fb54-4486-a1ca-103633e81cf1","storyId":"d7022095-fb54-4486-a1ca-103633e81cf1","image":"https://s.abcnews.com/images/Politics/capitol-building-washington-gty-jt-240113_1705185380094_hpMain_4x3t_384.jpg","author":"ABC News","dek":"Several federal agencies are investigating \"multiple letters containing suspicious substances,\" that were mailed nation wide, according to a notice sent to Senate staff."}