MOSCOW, April 13. /TASS/. Zaur Dadayev, a suspected killer of Russian opposition politician Boris Nemtsov, was detained by officers of the Federal Drug Control Service (FSKN), Viktor Ivanov, the FSKN chief, said on Monday.

"We handed over Dadayev to the FSB [Federal Security Service] and the Investigative Committee," Ivanov said.

Dadayev and four other Nemtsov murder suspects were detained in late March. A Moscow court later sanctioned their arrest till April 28.

Nemtsov, co-chair of RPR-Parnas party and deputy of the Yaroslavl regional duma, was killed in downtown Moscow late on February 27.