Vigils were held throughout Europe after Wednesday’s terrorist attack in Paris which left 12 dead. Authorities said the attack was perpetrated by masked gunmen who brutally executed two police officers and 10 staff members of the satirical French newspaper Charlie Hebdo.

Below are photos of the vigils. All captions were provided by the Associated Press.

People hold posters reading ‘I am Charlie’ as they gather in Nice, southeastern France, to express solidarity with those killed in an attack at the Paris offices of weekly newspaper Charlie Hebdo, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Lionel Cironneau)

Charlie Hebdo magazine shooting. People take part in a vigil in Trafalgar Square, London, after three gunmen carried out a deadly terror attack on French satirical magazine Charlie Hebdo in Paris, killing 12 people. Photo credit: John Stillwell/PA Wire URN:21886701

People light candles during a gathering in support for the victims of a terror shooting in Paris, as they gather near EU headquarters in Brussels on Wednesday, Jan. 7, 2015. Masked gunmen stormed the Paris offices of the satirical newspaper, Charlie Hebdo, on Wednesday, killing as many as 12 people, including its editor, before escaping in a car. (AP Photo/Geert Vanden Wijngaert)

Amelie Vogel from Paris and other participants take part in a solidarity even entitled ‘Je suis Charlie Hebdo’ (I am Charlie Hebdo) near the French Embassy on the Pariser Place in Berlin, Germany, 7 January 2015. According to news reports, at least 12 people got killed in a shooting attack at satirical French magazine Charlie Hebdo in Paris. Photo by: Bernd von Jutrczenka/picture-alliance/dpa/AP Images

Charlie Hebdo magazine shooting. People take part in a vigil in Trafalgar Square, London, after three gunmen carried out a deadly terror attack on French satirical magazine Charlie Hebdo in Paris, killing 12 people. PRESS ASSOCIATION Photo. Picture date: Wednesday January 7, 2015. See PA POLICE Magazine stories. Photo credit should read: Jonathan Brady/PA Wire URN:21886637

A woman holds a poster reading ‘I am Charlie’ with a rose, at a gathering in Nice, southeastern France, to express solidarity with those killed in an attack at the Paris offices of weekly newspaper Charlie Hebdo, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Lionel Cironneau)

Participants of a solidarity even entitled ‘Je suis Charlie Hebdo’ (I am Charlie Hebdo) mourn near the French Embassy on the Pariser Place in Berlin, Germany, 7 January 2015. According to news reports, at least 12 people got killed in a shooting attack at satirical French magazine Charlie Hebdo in Paris. Photo by: Bernd von Jutrczenka/picture-alliance/dpa/AP Images

A man holds a candle and a sticker reading ” I am Charlie”, during a demonstration in Paris, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper, Charlie Hebdo, Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Christophe Ena)

Demonstrators gather at the Place de la Republique after a shooting at a French satirical newspaper in Paris, France, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper, Charlie Hebdo, Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Christophe Ena)

A drawing depicting cartoonist Jean Cabut, left, Charlie Hebdo editor Stephane Charbonnier, center, and cartoonist Georges Wolinski, all three of whom were killed when masked gunmen stormed the Paris offices of a weekly newspaper Charlie Hebdo and reading in French, “Victims of their success, R.I.P”, is placed outside the French Embassy as people gather to express solidarity with victims of the attack in Berlin, Germany, Wednesday, Jan. 7, 2015. Three masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper Wednesday, killing 12 people, including its editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Michael Sohn)

Thousands of people gather for a moment of silence to pay their respects to the victims of the deadly attack at the Paris offices of French satirical newspaper Charlie Hebdo, in Lyon, central France, Wednesday, Jan. 7, 2015. Masked gunmen stormed the Paris offices of a weekly newspaper that caricatured the Prophet Muhammad, killing at least 12 people, including the editor, before escaping in a car. It was France’s deadliest postwar terrorist attack. (AP Photo/Laurent Cipriani)

People gather in solidarity of the victims of a terror attack against a satirical newspaper, in Paris, Wednesday, Jan. 7, 2015. Masked gunmen shouting “Allahu akbar!” stormed the Paris offices of a satirical newspaper Wednesday, killing 12 people, including the paper’s editor, before escaping in a getaway car. It was France’s deadliest terror attack in living memory. (AP Photo/Thibault Camus)