PICTURES: Deadly plane crash in Colombia kills 12 including mayor; no one survives

The agency said in a statement that the aircraft had declared itself in emergency shortly before crashing. (Photo by HO / COLOMBIA'S CIVIL DEFENSE PRESS OFFICE / AFP)

The plane was identified as a Douglas DC-3 registered at the airport in the city of Villavicencio, Xinhua news agency reported. (Photo by HO / COLOMBIA'S CIVIL DEFENSE PRESS OFFICE / AFP)

All the 12 people, including a mayor, aboard were killed in a plane crash in Colombia on Saturday, said the country's Special Administrative Unit of Civil Aeronautics. (Photo by HO / COLOMBIA'S CIVIL DEFENSE PRESS OFFICE / AFP)

The plane reportedly carried nine passengers and three crew members, including the mayor of Taraira, a municipality located in the southeastern province of Vaupes. Authorities have launched an investigation into the causes of the accident, said the agency. (Photo by HO / COLOMBIA'S CIVIL DEFENSE PRESS OFFICE / AFP)

"We regret the accident of the aircraft that covered the route (between the municipalities of) San Jose del Guaviare and Villavicencio," tweeted the civil aviation agency./ Image: Twitter (@BabakTaghvaee)