The municipal government report indicates that the explosion occurred as passengers were getting off the boat at Solidaridad's fiscal pier, and later on it was said the cause of the explosion was due to lack of maintenance on the boat's engine.
"The priority is people. The report we're receiving is that there are individuals wounded by splinters", Cristina Torres, municipal president, told Mexican newspaper El Universal.
Videos uploaded to social media showed emergency crews nursing injured people at the dock and people rushing for help.
The ferry was en route to Conzumel from Playa del Carmen early Wednesday.
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The cause of the incident was unknown; however, a preliminary indication for the cause of the explosion was "mechanical failure", according to Quintana Roo officials. The director of Civil Protection for Playa del Carmen reported there were no fatalities.
This photo, tweeted by a journalist, shows the damage sustained inside the vessel. According to the Associated Press, the explosion left a gaping hole in its starboard.
A Barcos Caribe ship.
Since February of 2015, the company has provided maritime transportation services between the two tourist sports.