Four Copenhagen buses were found engulfed in flames Friday morning in a suspected arson attack that authorities say could be linked to anti-Israel motives, according to a Copenhagen Post report. Several other buses were found vandalized, covered in anti-Israel graffiti calling to 'boycott Israel' and 'Free Gaza.' The attack comes a week after a pro-Palestinian group was ordered by Mavia, the country's bus operator, to take down advertisements calling for a boycott of Israeli goods. The advertisements which were removed from 35 public buses featured two woman beside the quote: “Our conscience is clean! We neither buy products from the Israeli settlements nor invest in the settlement industry.” Fathi el-Abed, a spokesman for the Danish Palestinian Friendship Association, condemned the Friday arson attack, calling it 'a criminal act.' He told the Post he fears that young a Palestinian would be held accountable for the act. Local police are still investigating the circumstances of the attack and are searching for witnesses.