A car flew off a racetrack in Spain Saturday, killing six and injuring at least 12 others. Bystander Toni Santana said a child was among the dead and the injured could number as many as 20, in a message posted to Twitter.

3 muertos, (un niño entre ellos), 15 heridos en un rally en La Coruña. — Toni Santana (@arcas_santana) September 5, 2015

The incident took place at a car rally in Coruna in the Galicia region in northwestern Spain. The vehicle crashed into spectators on a stretch of road going through the municipality of Carral. Of the six dead, reportedly four were women and two were men. No updates have yet been made on the condition of the injured. A local journalist posted to Twitter a pregnant woman was among the dead.

Car rallies are a popular form of entertainment throughout Spain, especially in the southeastern Catalan region. The rallies are usually a race among amateur drivers on a regular road instead of enclosed in a course, and this race took place on what appeared to be a dirt road outside with no barriers between racers and spectators.

Rally La Coruña, menuda desgracia. pic.twitter.com/jyoIwjRDSz — Toni Santana (@arcas_santana) September 5, 2015

Spanish authorities have not yet said what they believed caused the crash. Video footage showed the car ran off the dirt road and into the crowd, though it was not immediately clear why.

The crash that occurred Saturday around 7:30 p.m., local time, was not the first this week in European rally racing. Robert Consani and his co-driver crashed Friday, flipping their car several times and landing in a nearby field during a rally in the Czech Republic. Both men walked away from the crash unscathed.

The rally in Coruna Spain was suspended, the Spanish newspaper El Pais reported.