the iaea see it is very important that the staff can rest in order to carry out their importantjobs safely and securely so he is calling on those in charge there to allow that to happen and they are saying, finally, the other alarming development they say they are worried about, they say that communications have been lost with all enterprises and institutions in the colts comic port city of mariupol were of course there has been very heavy bombardment using category one to three radiation sources and there is no information about their status, say the regulator. they say such a way to make radioactive material can call serious hand people are not secured and managed properly. this map they say such radioactive material can cause serious harm to people. the director—general has offered to travel to chernobyl to secure nuclear sites in ukraine. that is what we're hearing there from the nuclear regulator. sorry to be alarming news.