SINGAPORE - Some customers of DBS and POSB have reported that they could not access the banks' automated teller machines (ATM), internet banking and Nets services from Monday morning.

This was confirmed by a DBS Bank spokesperson, who said in a statement on Monday afternoon that a "small number" of DBS and POSB ATMs and some online banking services were "intermittently impacted by a connectivity issue".

But she said that all services were fully restored at about 3pm, and added: "We would like to reassure our customers that their accounts remain secure."

The Twitter pages of DBS and POSB were abuzz earlier as many customers took to the social media platform to complain about the issue.

In response, the bank apologised for the inconvenience, and tweeted that users "might experience some delay with selected DBS services".

Mr Daniel Chua, 53, a construction company director, told The Straits Times that at about 11am on Monday, many ATMs at the DBS branch at Toa Payoh HDB Hub were not working, and carried the "temporarily out of service" sign.

"All the POSB machines were okay, so a lot of people went to use them instead," said Mr Chua.