Lawmakers in the U.K. have passed a controversial bill that would legalize assisted dying for terminally ill people deemed to be in the last months of their life.

MPs who voted in favour of the assisted dying bill have raised concerns about parts of it and want to see changes before giving it final approval. Some are worried about the bill's provisions to allow doctors to raise assisted dying as an option without the terminally ill patient having asked for it first.

A free vote on whether assisted dying has been labelled as an opportunity to ‘correct injustice and reduce human suffering’ by the MP behind the bill