Rainbow appears over Pulse nightclub after Orlando shooting

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.

Many said it appeared that the rainbow began at Pulse.