UBS, Switzerland's biggest bank, has reported a loss of 1.4bn Swiss francs ($1.32bn; £790m) for the April to June quarter.

UBS，瑞士最大的银行四月至六月第二季度损失14亿瑞士法郎。

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UBS was hit hard by the US sub-prime loans collapse

The loss is a slight improvement on the 2bn Swiss franc loss the bank made in the first quarter of this year.

The bank said results were "significantly affected²" by charges totalling 2.3bn Swiss francs.

In contrast, French bank BNP Paribas posted a profit of 1.6bn euros ($2.3bn; £1.36bn) for the second quarter.

The bank said it was "well placed to deal with the challenges of the current economic environment."

Outflows

UBS issued a cautious outlook for the coming months, saying a "sustainable（养得起的，可以承受的） recovery is not yet visible".

The bank made a loss of 358m Swiss francs during the same period last year.

It also failed to stem（堵住，阻止） outflows of money from its wealth management divisions in the three months to the end of June.

It reported outflows of 17.1bn Swiss francs from its Global Asset Management division and 16.5bn Swiss francs from its Wealth Management and Swiss bank.

UBS has been embroiled³ in a legal battle with US authorities over suspected tax evasion⁴（逃税，漏税） by its US customers.

The bank has been hit particularly hard by the credit crisis.

Its results contrast with those of Switzerland's second-biggest bank, Credit Suisse, which reported a second-quarter profit of 1.571bn Swiss francs, up 29% from a year earlier.