article_snippet.sent: The yearlong military conflict between Russian-backed rebels and Kiev government forces has claimed more than 6,000 lives and left large parts of east Ukraine's once industrial heartland in ruins.
article_snippet.sent: Heavy shelling was heard in Donetsk, eastern east Ukraine, late Monday evening and in the early hours on Tuesday.
article_snippet.sent: Ukrainian military spokesman Andriy Lysenko told a televised briefing that six troops were killed and 12 wounded in a 24-hour period, while rebels reported one fighter dead and five wounded in the overnight clashes.
article_snippet.sent: Ukrainian military spokesman Andriy Lysenko also reported civilian casualties, including two teenagers who were wounded in shelling in the Horlivka area, north of Donetsk.
highlights_snippet.sent: Six government troops and one rebel fighter dead after clashes overnight .