'Missile fragments found in Black Sea plane wreckage'

Russian sources say evidence is mounting that a Ukrainian missile hit an airliner over the Black Sea.

Missile fragments are said to be among the plane wreckage found, according to reports.

Ukraine says its forces are not to blame and its navy is searching for proof.

Russian investigators are refusing to speculate publicly on the cause of the explosion.

But according to sources, unnamed investigators said direct and indirect evidence is mounting that a Ukrainian missile hit the charter flight.

The families of the 78 mainly Israeli people killed in the crash have sailed to the site to watch recovery efforts carried out and hold a memorial service.