More killings in Chechnya

There are reports from Chechnya that two Russian security personnel died when a vehicle they were travelling in hit a mine in the city of Grozny.

In a separate, earlier incident, two local policemen -- a father and son -- were shot dead.

They were killed by unidentified gunmen who broke into their house overnight in the city of Gudermes.

A report on a Chechen opposition website said that the two policemen had been killed because they were traitors.

From the newsroom of the BBC World Service