At least 25 people are said to have been injured, six of them seriously, in bomb explosions at a bank in southern Ukraine.The blasts reportedly happened on the ground floor of a nine-storey apartment building. Two men carrying plastic bags are said by authorities to have entered the bank in the town of Melitopol, in the Zaporozhye region. Eyewitnesses say soon after they fled, one bomb went off and, as rescuers attended to victims, there was a second explosion. Emergency services sealed off the area, where a crisis management centre has been set up. Ukraine’s media has identified the bank as being a branch of state savings bank, Oshadbank.