The alarm was raised on the 1208 cross-country service from the Capital to Newcastle this afternoon.
British Transport Police were initially thought to be about to intercept the train in Berwick.
One passenger tweeted: “Four separate hen and stag do’s. Everyone palatic.”
British Transport Police officers are understood to be making their way to Newcastle to meet the train when it arrives.
A complaint was made by someone on board via the BTP’s text alert system.
A British Transport Police spokesman said: “We have been called to a disturbance on board a train travelling from Edinburgh to Newcastle.”
Were you on the cross-country Edinburgh to Newcastle service? Get in touch at [email protected]
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