The Mexican government has said it will lift its weeks-old ban on lettuce imports from California.

The decision comes after the US Department of Agriculture reported that its tests on California-grown lettuce and the irrigation water used on the state’s lettuce fields for the E. coli bacteria had come back negative, according to the CalTrade Report.

The ban came as a reaction to a recall of more than 8,500 cartons of lettuce grown on a farm in California’s Salinas Valley, after irrigation water tested positive for E. coli.

The US Food and Drug Administration has reported that the five fields involved were no longer in use and their crops had been destroyed.