'Massive' Fort Worth hotel explosion injures 11 in Texas: reports

An explosion rocked downtown Fort Worth, Texas on Monday afternoon and left at least 11 people injured, reports show.

NBC Fort Worth reported one person was critically hurt and another is missing after the explosion at the Sandman Signature Fort Worth Hotel on 8th Street between Houston and Throckmorton, according to the report.

Officials told the news outlet that they believe natural gas was the cause, but that it has not been confirmed.

Local firefighters are inside the building searching for survivors who might be trapped in the debris, NBC reports.

Those on the street report up-wind they smelled gas, indicating that the explosion was likely due to a leak, but it hasn't been confirmed.

The story is still developing. Watch video below or click here.