ORLANDO, Fla. -- Social media was buzzing Tuesday evening after a rainbow brightened the skies in Orlando over the Pulse nightclub, scene of the deadliest shooting in U.S. history.

The gay club is where a gunman opened fire early Sunday morning, fatally shooting 49 people and wounding dozens of others before being killed in a shootout with police.

Tuesday evening, people in Orlando -- which has been devastated by the shooting -- began sharing their photos and videos of the rainbow on Twitter.

Heading to the gym (located two blocks from Pulse) and this rainbow is hanging over the nightclub ❤️ #OrlandoStrong pic.twitter.com/6RO5m7lqM8 — Alexa Score (@AlexaScore) June 14, 2016

there is a huge rainbow over Orlando right now! pic.twitter.com/bMghQKR8p8 — Feldman (@EvgenyFeldman) June 14, 2016

Many said it appeared that the rainbow began at Pulse.