Several schools in and around Kaiserslautern received emailed bomb threats this week, according to local police. (Jochen Tack/Mettman Police)

Several schools in and around Kaiserslautern received emailed bomb threats this week, authorities said.

Investigators determined that the threats that showed up Monday were not credible, according to a Westpfalz Police Department statement the same day.

The emails were “part of a series” of bomb threats made to schools throughout Germany, according to the statement.