Liz Truss was interrupted by activists as she attempted to deliver her opening speech at a Conservative Party hustings in Eastbourne.
The protesters from Green New Deal Rising shouted “shame on you” and “Green New Deal” as they stood holding placards inside the hustings venue.
“I think we have some infiltrators and I will wait until they are evicted,” Ms Truss said, pausing her speech.
Tory members in the audience could be heard chanting “out, out, out!”
After five individuals were removed by security staff, she continued: “Can I just say a few words on the militant people who try and disrupt our country and who try and disrupt our democratic process and try and disrupt our essential services.
“I would legislate immediately to make sure that we are standing up to militant trade unions who stop ordinary commuters getting into work. And I would legislate to protect our essential services.”