One of the world's biggest containerships has grounded in the Elbe river in Germany.

The 19,100-teu CSCL Indian Ocean (built 2015) was heading from Felixstowe to Hamburg when it got stuck last night.

Attempts to pull the ship free using tugs failed last night, the NDR website reported.

Police said it should be refloated on the noon high tide on Thursday, however.

AIS data showed it still aground early on Thursday afternoon near Wedel.

The