Global cyberattack spreads to US, Merck hit

US drug giant Merck confirmed today it has become the first American company hit by a global cyberattack that started in Russia and Ukraine has spread through Europe and across the Atlantic.

"We confirm our company's computer network was compromised today as part of a global hack. Other organizations have also been affected," Merck said on Twitter.

"We are investigating the matter and will provide additional information as we learn more.