The Kyrgyzstan border service said on Friday that Tajikistan had opened fire on positions along their shared border, hours after an apparent ceasefire was agreed between the two sides. Earlier in the day on Friday, Kyrgyzstan said it had agreed a ceasefire with Tajikistan after deadly clashes on their disputed border escalated and raised fears of all-out conflict between the Central Asian nations. Russia has offered to mediate between the two ex-Soviet countries, where recent fighting has left dozens injured and several dead, and called for “urgent” measures to halt the fighting. Kyrgyzstan ha…