If it's the same poor design as the Mondeo, then you have a problem, the part that has broken is a nylon extension piece from the rear of the lock, to the actual bonnet catch mechanism.
To get to this you have a couple of options, either rip the grill out (to be replaced later) or cut round the inner perimeter of the plastic wich is normally covered by the swinging badge.
This will expose two shear head bolts, wich need to be drilled out, new shear head bolts cost approx £2 the pair.
Centre pop, and carefully drill out each of these bolts you see, (you will need some pressure), use a 6mm HSS drill bit, once the lock comes free you will find the nylon piece, one end is splined, the other end has a cross point like a screwdriver and fits into the bonnet catch.
It's usually the splined end that splits, it can be repaired, using a sleeve glued on.
If you want any further advice please ask.
Wotan