Jägermeister + Mexico + Pool Party + Liquid Nitrogen…what could go wrong? Everything, apparently:

A pool party in Mexico went horrifically wrong when organisers poured liquid nitrogen into the water, leaving one partygoer in a coma and eight others in hospital.

According to reports and videos filmed at the party, hosted by drinks company Jägermeister on Saturday, staff tried to create a smoke effect by pouring four buckets of the substance into the pool.

Nine victims were pulled from the pool by paramedics and rushed to the nearby Campestre Medical Hospital in Leon, where many were diagnosed with cardiovascular problems.One victim, identified by Univision Noticias as 21-year-old Jose Ignacio Lopez del Toro, remains in a coma in intensive care.