A man was found hanging under a pedestrian bridge in Tijuana, a Mexican city bordering the United States where drug-related violence has resurged, authorities said Thursday.

The victim hung from a chain with his hands and feet tied when he was found on Wednesday, said Jose Manuel Yepiz, spokesman of the Baja California state prosecutor's office.

A threatening message was left on the body.

It is the second time this year that someone is hanged from a bridge in Tijuana.

Such gruesome scenes were more common between 2006 and 2009, when the city endured a turf war between the Arellano Felix crime family and the Sinaloa drug cartel.

Homicides are on the rise again in the Pacific coast city, with more than 700 murders so far this year, compared to 670 in 2015, according to official figures.