VIENNA, May 28. /ITAR-TASS/. The Organization for Security and Cooperation in Europe (OSCE) has regained contact with the second group of observers in Ukraine's Donetsk, the organization said on Wednesday. 

Earlier, OSCE reported that it had lost contact with the second group of observers in Donetsk. However, around 7.00 pm local time the organization regained contact with the group.