Retailers have joined forces to condemn the London riots, which saw shops torched and goods looted.
Tesco and Aldi were among the supermarkets affected by the two nights of rioting, which have seen more than 100 people arrested and 35 police officers injured.
A Tesco store in Ponders End was attacked and had items stolen, while an Aldi shop north of Tottenham was also targeted.
Stephen Robertson of the British Retail Consortium said jobs were now in jeopardy at the stores affected, while customers could also miss out on local services.
“There may be genuine economic or community grievances in these areas but they will not be helped by torching shops,” he said.
“Retail is as the heart of thriving communities. Clearly, with high streets under pressure anyway, at least some of the business destroyed will not be able to re-establish themselves, causing long-term damage. “
Robertson also warned the rioting sent a dangerous message to would-be tourists ahead of the Olympic Games.
Editor's Comment: Riots aren't surprising. But riots about a Tesco Express in Stokes Croft? (30 April 2011)
Trashed Tesco at centre of Bristol riot (26 April 2011)