(Image source from: 10tv.com)

Las Vegas casinos could watch tens of thousands of employees walk off the job for the first time in more than three decades after union members voted to authorize a strike at any time starting June 1.

About 25,000 members of the Culinary Union who work at 34 different casino-resorts across the tourist destination cast ballots in two sessions. The move hands union negotiators a huge bargaining chip as they work to solidify new five-year contracts.

The last strike, in 1984, spanned 67 days and cost the city and workers tens of millions of dollars.

Resorts of MGM International and Caesars Entertainment have organized more than half of the esteemed properties that would be affected by a protest of.

Both companies say they expect to reach an agreement before the contract expires.

By Lokesh