Police could have sealed the Pike River mine and saved any potential survivors...

The New Zealand sharemarket has risen strongly in early trade, with the benchmark NZX-50 up 1.8 per cent.

The New Zealand sharemarket has recovered from two days of falls, but the NZ dollar fell back from an initial rebound.

The New Zealand stock exchange is soaring ahead this morning, with the benchmark NZX-50 up nearly 4 per cent in early trading.

Replay - Live chat with NZX's Mark Weldon

New Zealand shares are still falling this morning, with the local market down 3 per cent after big overnight losses on US and European exchanges.