The Islamic State has claimed responsibility for a knife attack in Solingen, Germany, which resulted in the deaths of three people and injuries to eight others, four seriously. The group stated that the attack was carried out by one of its members as an act of revenge for Muslims in Palestine and was specifically targeted at Christians during a festival. Authorities have arrested a 15-year-old boy suspected of being aware of the attack but not the actual perpetrator, who remains unidentified. The police are conducting extensive raids and investigations across North Rhine Westphalia to gather evidence and testimonies. Officials have described the situation as a 'big challenge' in piecing together the details surrounding the incident. So far, no direct connection between the attacker and the Islamic State has been established, despite the group's claims.