Internet access has been restored for users affected by the 14-hour service disruption on Thursday, said NetLink Trust in a news release.
According to Channel NewsAsia, the network outage affected those in the vicinities of Bukit Merah, Outram, Tanjong Pagar and Tiong Bahru.
NetLink Trust said that the service disruption was caused by "damages to the fibre infrastructure caused by contractors who were involved in the Thomson-East Coast MRT line construction."
Internet service providers Singtel, M1, Starhub and MyRepublic also posted updates on the status of the network outage on their Facebook pages.
In a post on Thursday afternoon, MyRepublic told its customers that they may experience Internet outage after receiving notification of NetTrust Link's fibre infrastructure damage.
M1 posted an update at 8pm the same day saying that NetLink Trust was working to restore internet service by 12 midnight.
Meanwhile, StarHub posted an update at 2.50am on Friday saying "all affected fibre services have been restored."