Glamorgan celebrated a rare first innings success before rain brought an early close at Derby.

Robert Croft scored an unbeaten 89 - his first half-century of the season - as Glamorgan totalled 348.

Resuming on 257-8 Croft and David Harrison prospered before Graham Wagg, switching between spin and seam, took the last two wickets to record 5-112.

Derbyshire reached 82-2 before a storm forced the players from the field and the umpires abandoned play at 1630 BST.