Ankara — Turkey says it has received the first major deliveries of a Russian missile-defence system, which purchase has drawn the threat of US sanctions over its potential to undermine Nato’s military capabilities. The lira has subsequently weakened.

A Russian plane carrying parts for the S-400 batteries landed at an air base near the Turkish capital of Ankara on Friday, Turkey’s top defence board said. The currency fell on the news and was trading 1.7% lower at $5.7720 as of 4.13pm in Istanbul. Senior US defence department officials were scheduled to hold a media briefing at the Pentagon outlining the US response to Turkey at 11.15am in Washington.

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