Deutsche Bank has agreed to sell its British insurance company Abbey Life to life insurer Phoenix Group for 1.1 billion euros, the troubled German lender announced on Wednesday.

Shares in the bank had jumped 3.65 percent in Frankfurt by just after 0800 GMT on the news, recouping a fraction of the heavy losses suffered on Monday and Tuesday.

Regulators must still approve the 935-million-pound ($1.2-billon) sale, the bank said.

Deutsche Bank said in a statement that the sale would boost its core capital ratio -- the stock of funds regulators require banks to have on hand -- by 10 basis points, or 0.1 percent over its level on June 30.

But it added that it would book a pre-tax loss of 800 million euros in a writedown of the value of its business and intangible assets.

The announcement comes after shares in the bank hit a record low on Monday, dropping 7.54 percent to close at 10.55 euros ($11.80) amid growing fears over its capital cushion.

Investors are nervous after it emerged earlier this month that the US Department of Justice is seeking a $14-billion fine from Deutsche over its role in the subprime mortgage crisis.

Following the sale of Abbey Life, subsidiary Deutsche Asset Management "will continue to concentrate on its core business," bank chief John Cryan said in a statement.

"We are continuing to work on a Deutsche Bank that is safer and less complex," he went on.

Cryan launched a drastic restructuring programme at Deutsche after taking office 15 months ago, as Germany's biggest lender continues to struggle with the fallout of the financial crisis.