Interior minister: France to reinstate border controls for major UN climate conference

FILE - In this Monday, Oct. 31, 2011 file photo, a French gendarme and French custom officer check vehicles, in La Turbie, southeastern France, near the Franco-Italian border, in spite of the EU's passport-free zone Schengen, as security measures are taken ahead of the G20 Summit of Cannes. France will reinstate controls on its borders — normally open to other countries in Europe's free-travel zone — for the period around a major U.N. climate conference in Paris, the interior minister said Friday, Nov. 6, 2015. (AP Photo/Lionel Cironneau, File) (The Associated Press)

FILE - In this April 4, 2009 file photo, smoke is rising on the bridge of Europe in Kehl, southern Germany and leading to France, while French anti NATO demonstrators and police stand face to face. France will reinstate controls on its borders _ normally open to other countries in Europe’s free-travel zone _ for the period around a major U.N. climate conference in Paris, the interior minister said Friday Nov.6, 2015. Authorities are on alert for violent protesters as well as potential terror attacks around the Nov. 30-Dec. 11 conference. (AP Photo/Winfried Rothermel, File) (The Associated Press)

An globe-like tent hosting an exhibition on climate is set up in the courtyard of the French Environment ministry as part of the Nov. 30-Dec. 11 climate conference, in Paris, France, Friday, Nov. 6, 2015. Some 80 heads of state including President Barack Obama, and tens of thousands of other people, are expected in Paris for the conference opening. (AP Photo/Thibault Camus) (The Associated Press)

France's interior minister says the country will reinstate border controls for a month around a major U.N. climate conference in Paris.

Bernard Cazeneuve said on BFM television Friday that the controls are part of larger security measures around the Nov. 30-Dec. 11 conference.

Authorities are on alert for violent protesters as well as potential terror attacks. France faced deadly attacks by Islamic extremists in January and several other smaller attacks or attempted attacks so far this year.

The conference is aimed at reaching the most ambitious global accord to date for all world governments to reduce emissions that cause global warming.