Police in Munich arrested a 17-year-old girl on Wednesday in connection with the on-going investigations into planned attacks by neo-Nazi groups in the city. The girl was held under suspicion of being a member of a terrorist organization. The authorities arrested 10 members of the Southern Brotherhood, a neo-Nazi gang based in southern Germany, last week after plans were discovered detailing a bomb attack scheduled for the inauguration of Munich synagogue on Nov. 9, the anniversary of the 1938 Nazi Kristallnacht pogrom, the infamous purge where synagogues were destroyed and hundreds of Jews killed or deported to concentration camps. Police seized 1.7 kilograms of TNT, 14 kilograms of suspected explosives, two pistols, grenades and a dagger with a swastika on it during the initial raids. Police made several additional arrests over the weekend.