The ABC election computer has called the seat of Herbert as a gain for the Labor Party, but the incredibly close vote count means there will be a full recount in the seat.

Both parties have been saying the contest is too close to call.

Labor's Cathy O'Toole leads incumbent Liberal MP Ewen Jones by just eight votes.

A recount is triggered if the final result has a margin of fewer than 100 votes.

Ms O'Toole said she faced a nervous wait.

"Eight votes is not a lot but as they say, a win is a win, and this stage that is where we are but we have a long way to go," she said.

"It is quite an enormous feat to knock off a margin of 6.2 so people are really excited about that."

Prime Minister Malcolm Turnbull previously said he was confident the Coalition would secure the Townsville-based seat.

It is the last undecided seat in the federal election.

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