Russian President Vladimir Putin has announced economic sanctions against Turkey, following the downing of their warplane by Ankara on the Syrian border on Tuesday. <br/><br/>The decree published on the Kremlin's website yesterday came hours after Turkish President Recep Tayyip Erdogan voiced regret over the incident. <br/><br/>Mr Erdogan had said that Turkey was truly saddened by the event and wished it hadn't occurred. <br/><br/>The Russian sanctions covers imports from Turkey, the work of Turkish companies in Russia and any Turkish nationals working for Russian companies. <br/><br/>The decree also calls for an end to charter flights between the countries. <br/><br/>It also urges Russian tour operators to refrain from selling packages to Turkey, while Turkey's Foreign Ministry has warned its citizens against non-essential travel to Russia until the situation becomes clear.<br/><br/>Mr. Erdogan's expression of regret was the first since Turkish F-16 jets shot down the Russian jet on grounds that it had violated Turkish airspace despite repeated warnings to change course. <br/><br/>He renewed a call for a meeting with President Vladimir Putin on the sidelines of a climate conference in Paris, saying it would be an opportunity to overcome tensions.