Police are still investigating four fires they believe were deliberately lit in Picton around 3am on Sunday.
Police communications spokeswoman Barbara Dunn said police were waiting for forensic results.
Three boats and a campervan were set alight on Angle St and Wairau Rd.
Police wanted to talk to anyone with information about the fires or who had been in the Wairau Rd area about 3am on Sunday.
- The Marlborough Express
How many books do you read a year?Related story: (See story)