A British suspect was arrested in London and accused of helping store weapons for Hamas to target Jewish and Israeli sites in Europe, authorities said .

Austria’s domestic intelligence service discovered a weapons cache in Vienna suspected to be linked to the Hamas terrorist organization and intended for use in attacks against Israeli or Jewish targets in Europe, the government said Thursday.

“The Directorate for State Security and Intelligence (DSN) has been conducting extensive, internationally coordinated investigations for several weeks into a globally active terrorist organization with ties to Hamas,” read the statement.