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      Man dies from mortar shell explosion

      An eastern Missouri man has died from injuries suffered when he picked up an explosive device in his yard earlier this month.

      Authorities say 51-year-old Michael Keen of St. Charles was doing yard work on the afternoon of July 5 when he found a mortar shell. He picked it up and it blew off part of his hand and caused several other injuries, including internal injuries.

      Keen died Monday at Barnes-Jewish Hospital.

      Police don't know what the device was doing in Keen's yard. An investigation continues.