Exit poll results predict a sweeping win in Scotland for the SNP, with the party on course to win in 55 out of 59 seats.
Representatives from all parties have reacted to the exit poll with a degree of caution, with many marginal seats across the county.
In Glasgow, SNP MSP Bob Doris said that if the party was “anywhere near” the 55 seats projected by the exit poll, it would be a good night for his party.
But Mr Doris said: “My first thought was that I’m terrified about a big majority for the Tories in the UK.
“We’ve said that Scotland should take its future into its own hands.
“My first thought is about that awful result.”
A Lib Dem agent said “it’s too early to say” when asked if party leader Jo Swinson would hold her East Dunbartonshire seat.
“It’s too early to know anything. We’ll need to get more data,” they said. Another added: “It’s going to be a long night.”
A Tory party source has told the PA news agency the exit poll in Scotland “doesn’t reflect what I’ve seen on the doorstep”.
They said: “Nationally, I think it’s very good.
“But I would be sad if that was the case, but I don’t think it’s going to happen.”
They called into question the veracity of the exit poll, but conceded the end result was still unknown, adding: “This could be the first time the Professor (John Curtice) is wrong.”
Ex-Scottish Tory leader Ruth Davidson told ITV News it is too early to write off seats held by Scottish Tory MPs.
She added: “I think that before we start writing off half of the Scottish seats we probably want to see just how close this is.”
She added: “Either way these seats are so, so tight.”