The Russian operator of a cargo ship that sank in the Mediterranean Sea between Spain and Algeria on Monday says it has been hit by a series of explosions in an act of sabotage. The company’s claims couldn’t be independently verified.

Russia rebuffed incoming U.S. President Donald Trump’s call for an immediate ceasefire in Ukraine, while saying it’s ready to hold negotiations on a long-lasting peace agreement to end almost three years of war.

Russia’s Federal Security Service said that the suspects were planning to kill one of the senior officers using a remotely controlled car bomb and another with an explosive device hidden in an envelope. The announcement follows the killing of a top Russian general last week.

The Estlink-2 power cable brings electricity from Finland to Estonia across the Baltic Sea and went down on Wednesday. The incident follows damage to two data cables.

Speaking at a news conference Wednesday, Azerbaijani President Ilham Aliyev said that it was too soon to speculate on the reasons behind the crash, but said that the weather had forced the plane to change from its planned course.

Authorities said a Russian warship arrived later Monday to oversee rescue operations. The Russian embassy in Spain told RIA Novosti it was investigating the accident.

Serhii Lysak says at least 11 other people were injured and more people could be trapped beneath the rubble of the four-story apartment block.

A Russian-born U.S. citizen already imprisoned in Russia on a bribery conviction has been handed a second 15-year jail term for espionage, Russian news agencies reported.

Activists are calling for an investigation into Ukraine’s top defense institutions over accusations that tens of thousands of locally made mortar rounds are failing to fire, or badly misfiring.