HSBC's online stock trading service in Hong Kong experienced its second outage in three months.

According to a report by Chinese daily Ming Pao, the bank's online stock trading system delayed transactions for 15 minutes from 10am to 10:15am on Monday.

A spokesperson was quoted as saying that the bank is still investigating the system failure and can't provide the number of customers affected and the amount of monetary loss incurred by customers. The Hong Kong Monetary Authority requested the bank to submit a report detailing the incidents.

In mid-April, the bank online investment service was down for more than an hour.

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