UK's Conservatives lead Labour by 1 point before election-Opinium poll

The poll put Cameron's party on 35 percent, unchanged from a previous Opinium poll, and Labour also unchanged at 34 percent.

Support for anti-European Union UKIP fell one point to 12 percent, the Liberal Democrats were unchanged at 8 percent and the Greens rose one point to 6 percent, Opinium said. (Writing by William Schomberg; editing by Kate Holton)