Main Avenue was shut down for a brief period Thursday while Robstown firefighters tried to remove a bee swarm from a nearby business.

Robstown police officer Filiberto Tagle said he was driving down Main Avenue about 12:30 p.m. when he noticed a swarm of bees on the wall of Floyd Insurance, located in the 400 block of Main Avenue.

Because the color of the bees was similar to the brownish tint of the brick that makes up the wall, the officer said the swarm would have been hard for most people to spot.

"You could see their shadows when they were moving around," Tagle said, adding that officers warned nearby businesses to stay indoors, while also helping some citizens to their cars.

Police closed off Main Avenue from Fourth to Fifth streets for nearly 45 minutes while Animal Control officers and Robstown firefighters gathered materials to dispose of the swarm.

Dishwashing liquid, rather than a pesticide, purchased from a nearby Dollar General was mixed with water and sprayed on the insects using one of the hoses from a fire truck by Animal Control.

"It's less expensive than the other stuff and it works just as good," Fire Chief Richard Gonzalez said about the dishwashing liquid.

No injuries were reported from the incident, officers said. For the owner of the business whose wall had been invaded, Eddie Floyd, that was good news.

"I didn't see (the swarm), but I'm glad they didn't sting anyone," Floyd said.

It was not immediately known whether the insects were regular or Africanized honey bees.