Security camera captures Texas chemical plant explosion

In Port Neches, Texas, security camera footage captured the moment a chemical plant exploded early on Wednesday morning.

The initial explosion at TPC Group's chemical plant, which was followed by secondary blasts, shattered windows and blew locked doors off their hinges. The three workers sustained non-life threatening injuries at the plant that employs 175 and routinely has 50 contract workers on site. The Port Neches plant can produce more than 900 million pounds of chemicals, according to the company's website.