At least 15 killed in crash on Lisbon's historic cable car railway

A historic Gloria funicular railway car in Lisbon, Portugal, derailed on Wednesday, killing at least 15 people and injuring 18 others, several critically, BBC reported.

The Gloria funicular, a landmark link between downtown and Bairro Alto, came off its tracks and struck a building. Officials suspect a loosened cable, but a formal investigation is underway.

Victims include foreign nationals, though identities have not been released.

The Portuguese government declared a national day of mourning, and Lisbon announced three days of mourning as rescue teams worked to recover and aid passengers, according to BBC.