Complex sentence: Immediately following the accident, many workers at the site joined the rescue forces to take the injured out of the debris, and Chợ Rẫy Hospital in Hồ Chí Minh City sent two professional rescue teams to the site.
Split into simpler sentences: Immediately following the accident, many workers at the site joined the rescue forces to take the injured out of the debris. In addition, Chợ Rẫy Hospital in Hồ Chí Minh City sent two professional rescue teams to the site.