Help cooker ignition problem!!

[Dumbstruck]

Can anyone help?
I've just moved into a new flat and I was cleaning the hob of the Hoover make oven (whilst cooking something in the oven) the gas ignition started sparking and won't stop. I have turned off the electricity as i got a shock from the hob.
Is this because the elements are wet or could I have triggered a bigger problem?

Please help!

 

[GaryMo]

Is the ignition button jammed in? You could have caught it whilst cleaning.
Have you tried to release it?

 

[ColJack]

make and model of the cooker would help..

some makes have an auto-spark when the knob is turned on.
you may have knocked the nob just enough to start the auto-spark, but not enough for the gas..