Play was briefly stopped in the first Test between New Zealand and South Africa on day three after a full evacuation of University Oval in Dunedin.
The final session had started with the tourists batting in their second innings when a siren started going off in the main stand.
After initial confusion, a full evacuation of the venue was ordered and a fire truck arrived at the ground.
South Africa were 14-1 when play was stopped, trailing New Zealand by 19 runs.
However, the Test resumed less than 20 minutes later, with fans allowed to reenter, although it was unclear as to the reason for the siren.