Senvion of Germany has stretched a GC Rieber Shipping vessel charter for two more months.

The Oslo-listed shipowner said the 6,300-dwt construction support vessel (CSV) Polar Queen (built 2011) had its firm period extended until 6 December.

There are also options for another three weeks.

The previously agreed firm period was due to end on 13 October.

The rate has not been disclosed.