This picture taken on December 31, 2013 shows packages of frozen foods produced by Japanese food company Maruha Nichiro Holdings' subsidiary Aqli Foods at the headquarters of Maruha Nichiro in Tokyo

More than 1,000 people have fallen ill after eating pesticide-contaminated frozen food as a scandal widens across Japan, Jiji Press reported on Wednesday.People have reported vomiting, diarrhoea and other symptoms of food poisoning after eating products including pizza and lasagne made by a subsidiary of Maruha Nichiro Holdings, the nation's largest seafood firm.The number of people affected by the tainted food has now risen to over 1,000, with more than 200 taken ill in the northern main island of Hokkaido alone, Jiji said.In western Osaka prefecture, a nine-month-old baby was hospitalised with vomiting on Monday after eating a product called creamy corn croquettes, the report said.Police began investigating the company last month after it revealed some of its frozen food had been tainted with malathion, an agricultural chemical often used to kill aphids in corn and rice fields.Detectives are looking at the possibility that the pesticide was deliberately added to the food at some stage of production at a factory in Gunma, north of Tokyo, Jiji said.As of Wednesday, Maruha Nichiro has received about 630,000 phone calls from consumers in connection with the incident, including complaints from customers who had eaten tainted products and some reporting unusual odours, a company spokeswoman said.The food maker has recalled 6.4 million potentially tainted products, with 1.49 million packages recovered so far, she said. None of the products in question had been shipped overseas, the company said.

While food scares do happen in Japan - in August 2012 E. coli-riddled cabbage killed seven people and sickened dozens - standards are relatively high.However, a much-vaunted reputation for safe and high quality food has been badly affected by the Fukushima atomic disaster, which saw acres of farmland polluted by nuclear fall-out and many countries restrict agricultural imports from the area.