Jailed Kremlin critic Alexei Navalny told supporters "everything is fine" in a first message Wednesday from a detention centre outside Moscow. In the message posted on Instagram, President Vladimir Putin's most prominent critic said he was being held in the Kolchugino detention centre in the Vladimir region northeast of Moscow. "But everything is fine with me, there's even a chin-up bar in the exercise yard here," he said. as/mm/mjs