https://x.com/polizei_nrw_k/status/1835544952584966519

The explosion took place in the entrance way of the Vanity nightclub in the Hohenzollernring area, known as a main entertainment district of Cologne, at around 5.50 a.m. local time, a police spokesman told NBC News.

The police said that at least one person might have been slightly injured in the incident.

Several glass windows apparently burst in the explosion “and could have likely harmed more people, if the explosion had occurred at a later time,” the spokesman said.