( CNN ) -- France has declared a three-day mourning period to commemorate the victims of the Air Algerie Flight 5017 crash , French President Francois Hollande declared on Saturday . Following a meeting with families of the victims , Hollande said flags will fly at half-staff on government buildings from Monday through Wednesday . Fifty-four of the 118 victims were French nationals . The second flight data recorder from has been found in Mali , a U.N. official said Saturday . A team from the U.N. mission to Mali , known as MINUSMA , is assisting the Malian authorities , at the request of that country 's government , spokeswoman Radhia Achouri said . There were no survivors on the flight , which took off Thursday from Burkina Faso bound for Algeria . Accounts of the number of people on board continue to differ . Air Algerie says 117 passengers and six crew were on the plane , but France says there were 118 victims in total . The Algerian government said there were 116 passengers and six crew . The wreckage was found in what Hollande said was a `` disintegrated state '' in Mali 's Gossi region , not far from the border with Burkina Faso . The first data recorder , or black box , was found at the crash site on Friday . The cause of the crash is not yet confirmed , but weather may have been a factor . Less than an hour into the flight , the aircraft , an MD-83 , disappeared from radar after changing its flight path because of bad weather , officials said . The U.N. mission 's support includes logistics , transportation , technical and scientific expertise , as well as help securing the crash site , which is in a remote and inaccessible location . `` Our experts assists the Malians and the French in the search of the site , collecting bodies , providing body bags and in securing the site aiming to speed up the work , '' said Achouri . As part of French efforts to assist , 33 French forensic experts arrived at the crash site Saturday . How flight attendants keep flying after air disasters . World unrest raises travel tension . Opinion : Despite plane crashes , it 's safe to fly .
French President Hollande declares three days of mourning for victims . The second flight data recorder has been recovered , a U.N. spokeswoman said . Air Algerie Flight 5017 crashed early Thursday , less than an hour after takeoff . More than 100 people were on board ; none survived the crash .