World News 2: Seven killed after bridge collapses in Russia's Bryansk region bordering Ukraine

Also, in Russia, two bridges in regions bordering Ukraine collapsed over the weekend, killing at least seven people and injuring dozens.

On Saturday night, a bridge in Russia's Bryansk region collapsed onto a moving passenger train carrying over 300 people.

Seven people were killed and more than 70 others were injured in the disaster.

Hours later, early on Sunday, a second bridge collapsed in the neighboring Kursk region, derailing a cargo train and injuring the driver.

Both the Bryansk and Kursk regions border Ukraine and have seen a surge in attacks on infrastructure since Russia's invasion of Ukraine.

Moscow's Investigative Committee has classified the collapses as terrorist acts.

And the state-run Moscow Railways reported that the Bryansk bridge had been blown up in an "illegal interference."

However, Ukrainian officials have denied the involvement, accusing Russians of staging a "false flag" operation to "manipulate international opinion" ahead of the Istanbul negotiations.