By STEFANIE DAZIO, Associated PressBERLIN (AP) — Three alleged members of the Palestinian group Hamas were arrested Wednesday on suspicion of plotting attacks on Israeli or Jewish institutions in Germany, officials said. Hamas has carried out hundreds of attacks against Israeli civilians over the years but has rarely operated outside Israel and the Palestinian territories. A Hamas-led attack on southern Israel nearly two years ago killed some 1,200 people and 251 others were abducted. Police in many European countries have been on heightened alert since the Oct. 7, 2023 attacks. Some forces have boosted security and patrols against possible attacks against Jewish or Israeli sites in recent months amid a spike of antisemitic violence on the continent and beyond.