Armenia and Azerbaijan accused each other of opening fire overnight on Friday, breaking a fragile ceasefire agreement that had brought the worst fighting between the two ex-Soviet countries since 2020 to a close last week. In statements issued by both defence ministries on Friday morning, Baku and Yerevan each accused the other side of firing first in renewed clashes along their shared border. Following two days of clashes that killed almost 200 soldiers early last week, the two sides agreed a ceasefire, brokered by Russia, to end hostilities, though the situation on the border has remained te…