Couple held after gas canisters found near Notre Dame Cathedral in Paris

A criminal terrorist investigation has been opened in Paris following the discovery of a car parked near Notre Dame Cathedral with seven gas canisters and pages written in Arabic inside, prosecutors said.

The Paris prosecutor's office revealed on Wednesday that a couple it described as radicalised - a 34-year-old man and a 29-year-old woman - were arrested a day earlier in a highway rest area near the southern town of Orange and transferred to Paris to be questioned in the case.