West Ham followed up their impressive victory over Arsenal with a win against Leicester to increase the pressure on Ruud van Nistelrooy and his relegation-threatened side.
Tomas Soucek celebrated his 30th birthday with the opening goal in the first half, firing in a loose ball after Mohammed Kudus’ shot was denied.
The hosts then put the game beyond the struggling Foxes just before the break when Jarrod Bowen’s shot from a tight angle deflected in off Leicester defender Jannik Vestergaard, after Jamie Vardy’s header from a corner had hit the woodwork for the visitors.
The Foxes, who were looking to close the gap to safety to two points with a win, had made a positive start as Wilfred Ndidi saw a second-minute effort saved.
But the Hammers’ opener proved a real blow and they struggled to create pretty much anything of note after that.
The defeat leaves Van Nistelrooy’s side second-bottom of the Premier League and five points from safety.
West Ham, meanwhile, are 15th, with their back-to-back wins putting them level on points with Tottenham and Manchester United, comfortably clear of trouble.