WELLINGTON (Reuters) - New Zealand’s main opposition National Party and its support parties were on track to sweep the ruling Labor government from power in Saturday’s general election, the latest count showed.

With 50 percent of the vote counted, the center-right National Party led by former foreign exchange dealer John Key had 47 percent of the vote, which would translate to 60 seats in the 122-seat parliament.

The center-left Labour Party, which is seeking a fourth three-year term, had 33 percent of the vote, translating to 42 seats.

The Green Party is on 6 percent, which would give it eight seats, with National’s committed ally, the right-wing ACT Party, on 3.7 percent for five seats.

If National maintains its current share of the vote, it would be able to form the next government with the help of the ACT and United Future parties, who have already pledged support. Under New Zealand’s proportional voting system, a party must win 5 percent of the nationwide vote or a local electorate seat to be represented in parliament.

Other parties on track to win seats were the Maori Party and the Progressives, both of which would hold local district seats.

However, the NZ First Party, led by outgoing Foreign Minister Winston Peters, was on 4.4 percent and because it was unlikely to win a local seat would not return to parliament.