A shooting outside a synagogue in the Eastern German city of Halle last week left two people dead and two injured.  Shots were fired near a kebab shop and at a synagogue while the Jewish community was observing Yom Kippur. Based on this shooting incident a footage was spread over the social media networks and according to Reuters U.S. tech companies have declined to release data on the online spread of footage of last week’s shooting in Halle, Germany, despite pledging greater transparency as part of New Zealand Prime Minister Jacinda Ardern’s “Christchurch Call.”

Tech Companies including Facebook and Twitter had vowed to take necessary steps to prevent circulation of violent content through social media after last year’s incident associated with New Zealand killing which was live streamed on Facebook.

The killings of two people outside a synagogue in Halle by a gunman, which were livestreamed on Amazon.com’s gaming platform Twitch, was the first test of the new “Content Incident Protocol.”

Reuters reported that the Global Internet Forum to Counter Terrorism, a group founded by Facebook, Twitter, Microsoft and Alphabet Google’s YouTube which facilitates the protocol, said that content related to the Halle attack was “significantly less impactful online” than the Christchurch footage.

The group said companies shared hashes, or digital fingerprints, for 36 visually distinct videos linked to the attack, fewer than the 800 hashes Facebook said it shared with the group after the Christchurch shooting.

But the GIFCT and the companies declined to release data on how many people had seen the footage and how many of the videos were taken down automatically by their systems, key metrics in measuring the impact of content online.  Facebook had earlier committed that they will automatically block the violent content from sharing and thereby it will be checked.