Though police are "not close" in establishing a motive for the Ohio shooting, they've ruled a "racial motive".
Governor Greg Abbott told reporters that the tragedy was "one the deadliest days in the history of Texas."
Police have arrested three people and recovered two firearms.
Switzerland — one of the most heavily armed countries in Europe — voted to comply with stricter European Union gun laws in a referendum Sunday.
Pakistan's military kill three attackers after luxury hotel raid on Saturday.
Argentine lawmaker wounded, aide killed in 'mafia-style' attack
The dissident republican group has offered ‘sincere apologies’ for shooting dead the 29-year-old reporter during rioting in Londonderry.
A murder inquiry has been launched after a 29-year-old female reporter died on Thursday following hours of rioting in Londonderry.
On arrival at the scene, a vehicle was driven at police officers.
The Copenhagen police arrested 14 men on Saturday night, after a shooting that injured several people.
Silent vigil mourns victims of Dutch tram attack
"Up to this point, a terrorist motive is seriously being considered," prosecutors said in a statement, citing "the nature of the shooting and a letter found in the getaway car."
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A summary of what we know about the tram shooting in Utrecht, the Netherlands
Video filmed on a mobile phone showed one person being detained after the fatal shootings at two mosques in New Zealand.
Police in New Zealand say 49 people have been killed at two mosques when at least one gunman opened fire on worshippers.
At least eight people, including children, were killed in a shooting at an elementary school in Brazil.
The gunman had been sacked earlier on Friday, police said.
One person was critically injured in a shooting at the Elmvale Acres Shopping Centre in Ottawa, Canada on Thursday morning, said police on Twitter.
Fans of nerf guns say they encourage children to turn off their screens and play with friends but could these games lead to real-life violence?
Shots fired in downtown Cologne, police arrest one and hunt is on for others
The police said the motive was unclear but the spokesperson for the prosecutor's office, Ine Van Wymersch, said it was not believed to have been a terrorist attack.
Euronews looks back at the biggest stories around Europe that you need to know about today.
Here are the top stories from across Europe you need to know about this morning
A Muslim man, originally from Kabul, Afghanistan, left in a coma after being shot by the gunman in Strasbourg city centre on Tuesday evening, has died, his brother told Euronews.
Chris Phillips, former head of the UK National Counter Terrorism Security Office, offered insights on why Strasbourg was targeted, what police are likely doing to deal with the situation, and the need for businesses to be better prepared for such events.