<img height="1" width="1" style="display:none" src="http://b.scorecardresearch.com/p?c1=2&amp;c2=15743189&amp;cv=2.0&amp;cj=1&amp;&amp;c5=&amp;c15=">

VIDEOS: Eyewitnesses react as California fireworks mishap injures 28

“That wasn’t supposed to happen,” a stunned man notes in a YouTube video of a fireworks explosion in a crowd in Simi Valley, California on Thursday.

Another eyewitness video features a man cursing as he reacts in horror to the massive explosion in the crowd.

According to the Associated Press, a wood platform holding live fireworks tipped over, sending the explosions into the crowd.

Twenty-eight people were reportedly injured.