Former French president Nicolas Sarkozy has been detained for questioning, as part of an investigation into corruption.
Europe Editor James Mates has tweeted:
Unprecedented for a former president to be held in this way. #Sarkozy thought to have been planning a return to frontline politics.
More top news
A 23-year-old man has been arrested in connection with the attack at Manchester arena last night.
Theresa May says police think they know identity of lone bomber as she contrasts "warped" terrorist with courageous emergency services.
Donald Trump has branded those who take part in terrorist acts as "evil losers" in the wake of a suicide attack at Manchester Arena.