New turnout figures have been released as we head towards the end of the voting day, showing turnout was 63.23% at 17:00 (15:00 GMT).
Such a low turnout figure has not been registered at this stage since 1969, BFMTV reports; it is also lower than the turnout at the same time two weeks ago in the first round of the election on 10 April when it was around 65%, BFM says. Five years ago it was 65.3% at this time.
Polling stations opened this morning at 08:00 local time (06:00 GMT) and are due to close in the big cities at 20:00 this evening.
Turnout four hours into voting at midday was slightly down compared to the same point in 2017 at 26.4%.