[1/3] Unionized truckers shout slogans during their rally as they kick off their strike in front of transport hub Uiwang, south of Seoul, South Korea November 24, 2022.
Union officials told Reuters the gap between the two sides is too wide to reach a compromise.
About 25,000 union drivers are striking over minimum wage rules.
As of Tuesday, 21 petrol stations had run dry, the industry ministry said.
Some 7,000 people rallied for the strike on Tuesday according to the transport ministry, saying the government's hard-line stance showed no real intention for dialogue.