Does a ritual require concentration?

@JeremyECrawford Does casting a spell as a ritual require concentration if the spell doesn't normally require it?

— Evil Genius (@EvilGeniusEnt) October 1, 2015

Concentration is required when casting any spell, including a ritual version, for longer than 1 action. #DnD https://t.co/qGaXrGYEgS

— Jeremy Crawford (@JeremyECrawford) October 1, 2015