Three Canadians have been shot and one has died after a dispute among guests at a hotel resort near Cancún, Mexico, local security officials say.
Gunfire erupted on Friday at the Hotel Xcaret Mexico in the tourist town of Playa del Carmen, about 70km (45 miles) south of Cancún on the Caribbean coast.
Photos of the suspected gunman were posted online by regional police chief Lucio Hernández Gutiérrez.
The attacker, a hotel guest, is still at large and a manhunt is underway.
CCTV photos show the attacker in a light blue tracksuit. In one photo he is seen holding a gun. In another, he appears to hold a mobile phone and a third photo shows him sitting in a lounge chair.
The police chief did not say what is thought to have sparked the argument. He also appealed to the public to submit any tips related to the case.
All three victims were taken to hospital, where one died.
Graphic video posted online shows the incident appears to have unfolded near an outdoor dining area.
There have been a worrying spate of attacks on foreign tourists in the Mayan Riviera region in recent months.
A shootout at a busy beach in Cancún in early November left two suspected drug dealers dead. Four Americans tourists were shot in the attack, which officials determined to be an assassination by a rival gang.
In October, an American and a German tourist were killed in crossfire between two drug gangs in the resort town of Tulum.
The recent crime wave led President Andrés Manuel López Obrador to send 1,500 members of the National Guard to patrol the region.
