Internet and social media access was cut in the Republic of Congo on Sunday as polls opened in a presidential election which veteran leader Denis Sassou Nguesso is expected to win.
The internet went down just after midnight, several hours before the opening of polling stations at 7:00 am (0600 GMT), AFP correspondents said.
Telephone communications however were still available, unlike in the previous election in 2016.
The 77-year-old Sassou Nguesso, in power for 36 years, is widely expected to win against six contenders.
The largest opposition group, the Pan-African Union for Social Democracy (UPADS), is boycotting the poll.