BERLIN (Reuters) - German Interior Minister Thomas de Maiziere said on Tuesday that investigators are following several leads on the Berlin Christmas market attack that killed 12 people.
"We just heard about the supposed claim of responsibility by this so-called Islamic State that is in fact a gang of terrorists," de Maiziere told ARD broadcaster.
"There are several leads that investigators are following now," the minister added.
De Maiziere added that "nobody will rest until the perpetrator or the perpetrators are caught".
Reporting by Michael Nienaber,; Editing by Michelle Martin