Steven Gerrard scored two penalties as Liverpool regained the Premier League leadership with an incident-packed victory at West Ham.
The club captain put his team in front after James Tomkins handled.
But Guy Demel tapped in from three yards in first-half stoppage time as Liverpool appealed that Andy Carroll had fouled keeper Simon Mignolet.
Carroll hit the bar with a second-half header, before Gerrard struck again after Adrian brought down Jon Flanagan.
Source: BBC