YANGON, Feb. 20 (Xinhua) -- Six workers were killed and 13 others injured in a factory fire in Myanmar's Yangon, the Information Ministry said on Wednesday.

The fire broke out at the plywood factory in War Tayar Industrial Zone in Shwepyithar town late Monday.

According to the Fire Service Department, the overheated boiler triggered the massive fire, destroying part of the factory.

The fire was totally put out after about one-hour fight against it.

An investigation into the blaze was underway by authorities.