Standard Chartered has notified thousands of small and medium enterprise customers in the United Arab Emirates (UAE) it is closing their accounts as it responds to pressure from US regulators to cut its risks following an anti-money laundering settlement.

"We regret to notify you that Standard Chartered Bank will no longer be able to provide banking services to you, and your account[s] will be closed 30 days from the date of this letter," the London-listed bank wrote in a letter to customers.

The letter - dated October 9 and seen by Reuters - has angered UAE customers, who say they have not been given enough time to close their accounts.

Under a settlement agreed with the New York State Department of Financial Services in August, the bank was fined $300 million and given 90 days to end high-risk relationships with SMEs in the UAE and suspend processing of dollar-­denominated payments for some clients at its Hong Kong unit.

The UAE central bank said in August that between 1,400 and 8,000 Standard Chartered accounts in the country were expected to be affected.

"The bank is putting a lot of peoples' livelihoods at risk as business like ours have salaries and suppliers to pay," said Louay al-Samarrai, managing director of Active Public Relations in Dubai, who has banked with Standard Chartered for 13 years.