Local police agencies say there's no evidence to support a rampant rumor circulating over text messages and the Internet that a gang is planning an attack at a South Florida Wal-Mart.   

"There's nothing to indicate this is rooted in fact,'' said Detective Rebeca Perez, a Miami-Dade police spokeswoman.  

The Broward Sheriff's Office called the threat a "long running hoax.''

BSO, the Palm Beach County Sheriff's Office, the Miami-Dade Police Department and Tallahassee police îîhave found no credible information to substantiate this threat,'' the PBSO said in a news release.

Dan Fogleman, a Wal-Mart spokesman said the company is taking extra precautions in light of the messages circulating.

"While we take these situations seriously, we regard this as only a rumor much like similar rumors that have circulated via e-mail in previous years,'' he said.

As of Wednesday afternoon, the term "walmart gang initiation'' was one of the top searches on Google.