The apparent suicide of Russia’s transportation minister brought expressions of shock and sorrow from the Kremlin but no new clues as to why Roman Starovoit might have taken his own life amid media speculation he potentially was facing corruption charges.

Roman Starovoit was Russia’s transport minister until President Vladimir Putin fired him from the position on Monday. Just hours later, he was found dead in his car, with investigators saying that suicide is the most likely cause.

Roman Starovoit, former transport minister, committed suicide after being removed from his post this morning, Russian media reported. Here are the details so far.