WASHINGTON (AP) – A new report on mass attacks calls for communities to intervene early when they see warning signs of violence.

The report also encourages businesses to consider workplace violence prevention plans and highlights the connection between domestic violence, misogyny and mass attacks. The report comes from the U.S. Secret Service’s National Threat Assessment Center.

The center’s report analyzed 173 mass attacks carried out over a five-year period from January 2016 to December 2020 in public or semi-public places such as businesses, schools or churches. The U.S. is experiencing a particularly deadly start to the new year with 39 people dead in six mass killings.