Oklahoma man charged with mailing hundreds of white powder hoax letters to public officials

Federal authorities have charged an Oklahoma man with sending hundreds of letters containing nonhazardous white powder to public officials ahead of the 2024 and 2026 elections.The powders turned out to be yeast or flour, though not all letters have been fully tested, the FBI said in a court filing made public Tuesday.Robin Martin is charged with conveying a hoax and mailing threatening communications. Martin was expected to make his initial court appearance Tuesday afternoon in Oklahoma City. Online records do not list an attorney to comment on his behalf. Letters with 'suspicious substances' sent to congressional, election officesFederal authorities announced last month that they were investigating letters with "suspicious substances" that had been mailed to congressional and election offices nationwide and urged recipients to treat the mailings as "potentially hazardous."A message from the Senate Sergeant at Arms obtained by The Associated Press said that law enforcement officials we