France church attack: Prayer, solidarity and Christian imagery on social media
The killing of a priest in an attack on a church has horrified France - and many people have been sharing Christian imagery in a show of solidarity and sympathy.
In what has become a sadly familiar response to terror attacks in Europe, people used social media to express their shock and outrage.
But this time the emotional memes and hashtags also reflected the fact that a church was the target of an attack and an 84-year-old priest, Fr Jacques Hamel, was the victim.
Je suis pretre - I am a priest
The "I am" hashtag has become the default way of showing solidarity after it first emerged when gunmen attacked the Paris offices of the satirical newspaper Charlie Hebdo in January 2015.
Shortly after the attacks in Rouen, it reappeared again with many priests themselves being the first to use #JeSuisPretre - I am a Priest.
Others have shown solidarity with #JeSuisChretien - I am Christian - and #JeSuisCatholique - I am Catholic.
Images of Christ have also been shared as social media reflects on the murder of a defenceless, elderly priest.
Meanwhile many, sharing their sadness and shock, have been paying tribute to the Fr Hamel. The Vatican called the incident barbarous, and the Archbishop of Canterbury was among those who tweeted a call to prayer.
By Rozina Sini, BBC's UGC and Social News Team