Labour MP for Lewisham East Heidi Alexander said: "Undoubtedly we have a really big fight on our hands to reverse these proposals. Ultimately it's a decision for Jeremy Hunt, the Secretary of State for Health. He will take that decision in February.
"But with 32,186 signing our petition in just five weeks. I think it's a very clear demonstration about the concern and opposition that exists in Lewisham about the downgrading closure of the A&E."
More top news
Reclaim the Power stage a protest at Heathrow against a new runway or further airport expansion.
Eight more people were hurt in the collision.
Police are hunting a man who is suspected of grabbing an 11-year-old girl who only got away by biting her attacker's hand.