President Donald Trump's government is said to have hesitated to criticize Russia for the attack, which may constitute a war crime, since they are "working to preserve the opportunities for negotiating peace" – in other words, not to irritate the Moscow regime.
At least 35 people were killed and around 120 injured, many of them children, in the bombing in connection with the Palm Sunday celebrations in Sumy last weekend.
Canada, which is currently the chair of G7, has according to sources informed the other members that without the USA, the association cannot issue a condemnation.
G7 consists of France, Italy, Japan, Canada, the United Kingdom, Germany, and the USA. The EU also usually participates.
Between 1997 and 2014, it was called G8, when Russia was also a member. But the country was expelled in connection with the first invasion of Ukraine.