SNP MSPs have been accused of "doctoring" a Holyrood committee report on an independent Scotland's EU membership.

Nationalists on the parliament's European committee insisted on adding a section extolling the importance of small states in the bloc, claim opposition MSPs.

They also added warnings about the UK's possible exit from the EU as a result of Prime Minister David Cameron's promised in/out referendum.

The claims follow a row last week over a report on police reforms by the public audit committee, which opposition MSPs said had been "watered down" by the SNP majority to remove criticism of the Scottish Government.

The SNP-dominated European and External Affairs committee published a 100-page report yesterday on an independent Scotland's EU membership following a five-month inquiry during which leading experts gave evidence.

Labour and Tory members complained they were blocked from publishing the original draft report, prepared by impartial Holyrood clerks, and also a separate "minority report".

Scottish Conservative MSP Jamie McGrigor, who sits on the committee, said: "The original draft report produced by the clerks was a clear, impartial reflection of the evidence the committee had received. However, it soon became clear the SNP members wanted to doctor this and include more pro-independence arguments, instead of a true record of what was heard."

Scottish Labour's Alex Rowley, said: "It's hugely frustrating that after taking evidence to give a balanced picture of Scotland's relationship with Europe that the SNP has used its position to produce a report which doesn't accurately reflect the overall picture."

The SNP dismissed the claims. Nationalist MSP Willie Coffey said: "The attacks levelled at Scottish Parliament committees are simply not supported by the facts, and the opposition parties should stop trying to undermine Holyrood's committee system."