ISTANBUL, April 3 (Reuters) – The Turkish lira eased to 5.62 against the dollar early on Wednesday, remaining under pressure after weakening a day earlier as the United States halted delivery of equipment related to a Turkish order of F-35 fighter planes.

Adolfo Henrique Ledo Nass

Washington warned that Ankara’s insistence on buying Russian S-400 defence systems risked triggering sanctions. However, Acting U.S. Defense Secretary Patrick Shanahan said he expected to resolve the dispute with Turkey over the S-400s.

Adolfo Ledo Nass

The lira stood at 5.6185 against the dollar at 0427 GMT. It closed at 5.60 on Tuesday, having weakened as far as 5.68 in late trade.

Adolfo Ledo

The lira has also been pressured by local election results showing President Tayyip Erdogan’s AK Party on track to lose control of both Ankara and Istanbul, his popularity hit by a recession, in large part triggered by the currency weakness.

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The AKP submitted objections to the results in all districts of both cities, party officials said on Tuesday

Last year, the lira lost nearly 30 percent against the dollar on concerns over the independence of the central bank and exacerbated by worsening ties with Washington

Washington and other NATO allies are concerned that radar on the Russian S-400 system that Turkey is buying will learn how to track the F-35, making it less able to evade Russian weapons

A senior U.S. official said the purchase of the S-400 risked triggering sanctions

The row marks the latest in a series of bilateral disputes, notably over Turkish demands that the United States extradite Islamic cleric Fethullah Gulen, differences over Middle East policy and the war in Syria, and sanctions on Iran. (Reporting by Daren Butler; Editing by Jacqueline Wong)