French President Emmanuel Macron on Thursday told British Prime Minister Boris Johnson there was not enough time to negotiate a new Brexit deal.
But he has backed German Chancellor Angela Merkel's suggestion for the UK to come up with alternatives to the Irish border backstop within 30 days.
"What Chancellor Merkel said yesterday, and which is in line with the substance of our talks, is that we need visibility in 30 days," Macron told reporters standing alongside Johnson.
"Nobody is going to wait until October 31 without trying to find a good solution."

Israel to allow international force into Gaza, Israeli official says
Kuwait strongly condemns repeated Houthi attacks on ships in Red Sea
Trump gives Iran talks 'room', US ambassador to UN says
Southern China faces torrential rain, flood risk after Typhoon Noul hits land
India's youth protests end as Modi's education minister quits
Vehicle mows down crowd at Berlin Pride festival, killing one
Rescuers scour South China Sea for 17 missing after Vietnamese vessel sinks
DR Congo says number of confirmed Ebola cases surpasses 3,000
