Moscow on Saturday slapped economic sanctions on Turkey in the latest tit-for-tat move over the downing of a Russian warplane, as Turkish leader Recep Tayyip Erdogan said he was "saddened" by the jet incident.

Moscow on Saturday slapped economic sanctions on Turkey in the latest tit-for-tat move over the downing of a Russian warplane, as Turkish leader Recep Tayyip Erdogan said he was "saddened" by the jet incident.

With the row showing no sign of abating, the Kremlin released the text of a decree signed by Russian President Vladimir Putin that announced an end to charter flights between the two countries, a ban on Russian businesses hiring any new Turkish nationals and import restrictions on certain Turkish goods.

It also asked Russian tour operators to refrain from selling trips to Turkey, normally a top holiday destination for Russian tourists.

The new measures come into effect from January 1, 2016. The list of Turkish goods subject to "bans or limitations" has not yet been made public.

The Kremlin announcement came just hours after Erdogan made his most conciliatory comments to date over the shooting down of the jet, saying he wished Tuesday's incident had never happened.