What type of sealant can I use to hold loose lead flashing in place and seal the join back

[tooly]

The lead flashing just below the window sill line on a bay bedroom window has come loose, and can easily be removed. The bay below the window has small tiles up to the outer sill and about 3 inches of lead protudes down (loose). What type of sealant could i use to hold in place and seal the join back into the brick work. Thank's Tooly.

[bd3cc]

It is normally Held in place by lead wedges, in the mortar joint.
Sealant is Leadseal, belive it or not
Loose over the tiles, is quite normal, it only has to overlap.
HTH