A huge swarm of Africanized bees flew out the attic of a Florida home and stung a pit bull to death, police said.

Another pit bull was left in critical condition, NBC station WFLA of St. Petersburg reported.

The incident occurred Thursday morning when the two dogs started barking outside the home. Bee experts said nearly 100,000 killer bees were in the attic, WFLA reported.

A man who cared for the two strays told WFLA that the bees “were crawling all over them.” One named Boss was killed and another was stung more than 100 times.

Africanized bees are hybrids of African honeybees and Western honeybee species.

The homeowners told WFLA that they didn’t know the bees were there.

"I wouldn't put the community in danger like this. I wouldn't," homeowner Shirley Burns said in a WFLA video.

A bee expert removed the hive Thursday night, WFLA reported.