<p style="margin: 0px; text-align: justify;">Armenian government today said that four of its soldiers were killed along the nation's heavily guarded border by Azerbaijan forces.</p>''<p style="margin: 0px; text-align: justify;"><br />''</p>''<p style="margin: 0px; text-align: justify;">Meanwhile, Azerbaijan said that it had staged a revenge operation in retaliation for a provocation Armenian forces had committed the day before. Azerbaijan's Defense Ministry said, Armenian forces had fired at Baku's positions along a northwestern section of the border. However, Armenia has denied these claims. This happens as the countries are involved in peace talks to end a 30-year-long conflict.</p>''<p style="margin: 0px; text-align: justify;"><br />''</p>''<p style="margin: 0px; text-align: justify;"><span style="color: #222222;">On the other hand, Kremlin called on Armenia and Azerbaijan to exercise restraint following the latest incident. Russia has a contingent of peacekeepers deployed in the region, and its border guards patrol Armenia's frontiers. Armenia and Azerbaijan have fought two wars and seen three decades of conflict over the Nagorno-Karabakh region.</span></p>