At least 5 people are dead after a gunman opened fire from his car at a busy marketplace in Krakow, Poland.

Around a dozen people -- including police officers -- were treated for injuries after the deadly shooting that ended with the gunman being shot ... the Małopolska Police shared on social media.

The unidentified suspect was then taken to a nearby hospital ... it's unclear what his current status is.

In an update, police confirmed that the suspect is a Polish citizen and denied reports of a second suspect.

The shooting happened around 3 PM ... when the suspect drove onto Rynek Glowny square before opening fire on the crowd and a tram ... according to Krakow’s public transportation operator, MPK Krakow.

MPK wrote on X ... "According to the information we have, neither the passengers nor the driver were injured."

This story is developing ... we'll keep you posted as we learn more.