Authorities in Barcelona turned to social media in the wake of a terror attack in the northeastern Spanish city to request residents refrain from sharing images of the wounded out of respect for their families.
At least 13 people were killed and about 100 injured after a white van jumped onto a sidewalk and sped down a pedestrian zone in Barcelona's historic Las Ramblas district, authorities said.
As the appeal went unheeded by some, social media users took it upon themselves to flood Twitter with cat memes urging restraint under the hashtag #Barcelona.
The move was reminiscent of a public appeal made by police in November 2015 as Brussels authorities asked for a social media blackout while they conducted a series of terror raids across the city.
As the raids were conducted and 16 were ultimately arrested, the hashtag #BrusselsLockdown began trending as police cast a net around the city. Instead of foiling police movements, residents instead posted photos of cats across the internet.
Following the Belgian raid police thanked those who helped out on social media, posting a tweet reading: "For the cats who helped us last night ... Help yourself!"