Turkey’s finance chief has tried to reassure thousands of international investors on a conference call, in which he pledged to fix the economic troubles that have seen the country spiral into a currency crisis.

The national currency recovered somewhat from record lows hit earlier this week, a day after Qatar pledged 15 billion dollars (£11 billion) in investments to help Turkey’s economy.

Treasury and Finance Minister Berat Albayrak was quoted by private media NTV as saying the economy would emerge stronger from the turmoil.

Mr Albayrak said Turkey’s banks are “healthy and strong” and that implementing structural reforms and maintain tight monetary policy to fight inflation remain a priority.

The minister ruled out any move to limit money flows — which is a possibility that worries investors — or any assistance from the International Monetary Fund, NTV said.

The lira had nosedived in recent weeks, hitting a record low of 7.24 this week, as investors worried about fundamental economic problems in the country and a diplomatic and trade dispute with the United States.

Among the big concerns is that Turkey’s has amassed high levels of foreign debt to fuel growth in recent years. And as the currency drops, that debt becomes so much more expensive to repay, leading to potential bankruptcies.

Turkey Europe
Turkey is beset by a weak currency and tension with the United States (Lefteris Pitarakis/AP)

Also worrying investors has been President Recep Tayyip Erdogan’s refusal to allow the central bank to raise interest rates to support the currency, as experts say it should.

Mr Erdogan has tightened his grip since consolidating power after general elections this year.

In his conference call, Mr Albayrak did not appear to specify whether the central bank would be assured its independence or hint at whether rates would be allowed to rise.

Doubts about Turkey’s future intensified as relations with the United States, a longtime Nato ally, soured.

The US imposed sanctions on two Turkish government ministers and doubled tariffs on Turkish steel and aluminium imports over the continued detention of an American pastor on espionage and terror-related charges.

Turkey retaliated with some 533 million dollar of tariffs on some US imports — including cars, tobacco and alcoholic drinks — and said it would boycott US electronic goods, singling out iPhones.

The White House has complained about Turkey’s treatment of Andrew Brunson, the detained American pastor.

A Trump administration official said on Thursday evening that the White House has told Turkey to free the pastor if it wants to cool off diplomatic and economic tensions between the two nations.

White House press secretary Sarah Huckabee Sanders earlier criticised Turkey’s move to impose tariffs on some US goods as “regrettable and a step in the wrong direction”.

She would not be drawn on whether the Trump administration would respond.

President Donald Trump joined in with tweets on Thursday night, urging Mr Brunson to serve as a “great patriot hostage” while he is jailed and criticising Turkey for “holding our wonderful Christian Pastor”.

Mr Trump added: “We will pay nothing for the release of an innocent man, but we are cutting back on Turkey!”

The Turkish currency began to recover after authorities this week took steps to help bank liquidity. Also helping the currency were moves by Turkey this week to gain favor with European countries, including releasing two Greek soldiers and an Amnesty International human rights campaigner from prison.

Turkish officials said Mr Erdogan spoke with French president Emmanuel Macron, during which the French president said Turkey’s economic stability is important for France.

Mr Erdogan held a similar conversation with Germany’s Angela Merkel on Wednesday.

Qatar said it would provide “a host of economic projects, investments and deposits” worth 15 billion dollars to support Turkey’s economy.

The decision came after Qatar’s emir, Sheikh Tamim bin Hamad Al Thani, met with Turkish president Recep Tayyip Erdogan in Ankara.