al jazeera, idomeni. >>> meanwhile, estonia latvia and lithuania, these pictures show latvia's new fence with russia. it says it needs $80 million to deal with the incoming migrants. time for an official break here ot al jazeera. when we come back, we'll look at a project that will destroy part of a pakistani city. plus. >> a dying generation of traditional musicians are working dispriment to preserve their art. art. >> welcome back, a quick reminder of the top stories here on al jazeera. in what's being called a major set back for i.s.i.l, the u.s. says it killed the man in charge of its finances. refugees on the greek macedonia border are refusing offers to move to better conditions, despite the makeshift camps there. >>> police have arrested three more people in brustles brussels in connection with thbrusselsco. jacky rowland reports on a muslim school paying tribute to their teacher who was one of the victims. >> reporter: a solemn moment of commemoration. students at this islamic school in brussels have just learned that their gym teacher was one who was killed in the brussels bombing. they are still digesting the news, angry and shocked. >> we can't be anything but angry, these people who cla