Massachusetts health officials say a meat company is voluntarily recalling beef products after more than 20 school children and adults from Rhode Island were sickened by E. coli.

Department of Public Health spokeswoman Jennifer Manley said on Monday that South Shore Meat Company of Brockton is recalling ground beef and other products after tests showed the presence of E. coli in leftover samples.

Those sickened include two sixth-graders, who were hospitalized after consuming contaminated meat during a field trip earlier this month.

Massachusetts officials say tests showed the ground beef collected at the camp is the same strain of E. coli confirmed in two of the children.

E. coli can cause serious illness in young children, the elderly or those with compromised immune systems.