Legislation making Scotland the only part of the UK with statutory targets to cut child poverty is expected to be passed at Holyrood.

MSPs will debate and vote on the Scottish Government's Child Poverty Bill on Wednesday at the final stage of its journey through parliament.

More than one in five - about 220,000 - children live in poverty in Scotland.

The bill will require that by 2030 less than 10% of children are in relative poverty, meaning those living in a home earning below 60% of the current median UK household income.

Less than 5% of children are to be in absolute poverty, defined as households earning below 60% of the 2010/11 national median income.

There are also further targets for less than 5% of children to be assessed as being in combined low income and material deprivation and less than 5% in persistent poverty.

Speaking before the debate, SNP MSP George Adam, who sits on Holyrood's social security committee, said the bill could be "transformational for children across the country".

Opposition parties previously backed measures aimed at strengthening the legislation during its committee stage of scrutiny.

Labour, Tory and Green MSPs on Holyrood's social security committee united to vote through a series of amendments to require ministers to set out whether they will use new welfare powers to increase child benefit, include interim child poverty targets on the face of the bill and establish a poverty and inequality Commission.