Chief of the Security Service of Ukraine (SBU) Vasyl Hrytsak has said that law enforcers have detained a suspect in a terrorist attack committed in Kyiv in October 2017, in which two people were killed and three more, including Ukrainian MP Ihor Mosiychuk, were injured.

"Just a few days ago, we detained one of those who took part in organizing and committing this terrorist attack... I can say that we have solved this terrorist attack in cooperation with the prosecutor's office," Hrytsak said in Odesa on Tuesday, April 3.

He specified that one person had been detained and that two more were "in another territory, we understand where they are."

According to Hrytsak, during the searches law enforcers had seized several kilograms of TNT, an RPG-26 grenade launcher, grenades, other items and documents that could point to the person's involvement in committing this crime.

"I do not want to disclose the details," he said, adding that a briefing on this crime will be held in the near future.

As reported, two people were killed and three more, including Radical Party MP Ihor Mosiychuk and political analyst Bala, were injured in an explosion outside the building of the Espresso TV channel late on October 25, 2017. Both of them were hospitalized and underwent surgery. Those who were killed are two police officers - Mosiychuk's security guard, Ruslan Kushnir, who died on his way to hospital, and 36-year-old local resident Mykhailo Mormil.

The explosion was qualified as a terrorist attack. The Security Service of Ukraine (SBU) is overseeing the investigation.

Mosiychuk said late in February 2018 that several terror suspects were in Chechnya and that the perpetrators of the crime had been identified.