It appears a SECOND coup may be underway in Bolivia right now.
Not entirely confirmed, but Evo Morales (who was ousted as president after a right wing putsch a couple years ago) is calling it a coup and he'd know.
Current president Luis Arce is decrying "irregular military activity" in the capital of La Paz including a major mobilization of military police and armored vehicles. He's asked the military to "respect democracy."
Not really any English language coverage of this yet, but it it all seems to have started at 3pm local time, not even an hour ago so that isn't surprising.