Tottenham have condemned a banner mocking Chelsea defender Marcos Alonso's involvement in a crash which led to the death of a young woman.
Alonso was at the wheel of a car which crashed in Madrid in 2011, leading to the death of a 19-year-old woman.
An image had been circulating on social media following Spurs' match with Huddersfield at the weekend, but has since been deleted.
Spurs have promised to track down and punish those responsible.
A Tottenham spokesman told The Times: "This banner is clearly in extremely poor taste and we are investigating the matter.