A drone strike in the Russian-occupied Lugansk region hit a college dormitory overnight, killing six people and injuring dozens more, according to Russian officials, in an attack the Kremlin swiftly denounced as terrorism. Up to 15 others remain missing, Russian President Vladimir Putin said in televised remarks, calling the strike a "terrorist" act. Mr Putin said he had instructed the defence ministry to prepare a response, but gave no further details. Lugansk, in eastern Ukraine, is almost بالكامل under Russian occupation,…