Jammed Drawer.

[Tilly2]

I have just closed the cutlery drawer, carelessly and something has jammed itself between the drawer and the work surface above.
I can't open the drawer more than a couple of centimetres and I can't close it properly either.
I can't dismantle the drawer because I can't get to it.
I've tried dislodging the jammed article with a plastic spatula but it won't move.
What can I do?