A lithographic printing plate precursor including on a support a coating comprising (i) a photopolymerisable layer including a polymerisable compound, a first infrared absorbing dye according to Formula I and a photoinitiator; and (ii) a toplayer provided above the photopolymerisable layer which includes a second infrared absorbing compound which includes a thermocleavable group which transforms into a group which is a stronger electron-donor upon exposure to heat and/or IR radiation, and is capable of forming a print-out image upon exposure to heat and/or IR radiation, wherein A represents a halogen, an optionally substituted aliphatic hydrocarbon group, an optionally substituted (hetero)aryl group or -NR 1 R 2, wherein R 1 and R 2 independently represent hydrogen, an optionally substituted aliphatic hydrocarbon group or an optionally substituted (hetero)aryl group, and/or combinations thereof; Z and Z' represent -S-, -CR a R b - or -CH=CH-; R a and R b represent an alkyl, aralkyl or aryl group; Q represents the necessary atoms to form a ring; Rz and Rz' independently represent a linear or branched alkyl group; T and T' independently represent hydrogen, alkyl, halogen, alkoxy, cyano, - CO 2 R n, -CONR k R m, -SO 2 R n, -SO 2 NR o R p, a carboxylic acid, an ester, a nitrile, an alkyl or (hetero)aryl phosphonate, an alkyl or (hetero)aryl sulphonate, a sulfoxide, a nitro and/or a trihaloalkyl group, or an optionally substituted annulated benzene ring wherein R k, R m represent hydrogen, an optionally substituted alkyl or aryl group, R n represents an optionally substituted alkyl or aryl group and R o and R p represent hydrogen, an optionally substituted alkyl or aryl group; provided that at least one of T and/or T' represents at least one electron withdrawing substituent; and W - represents a counterion in order to obtain an electrically neutral compound. (i) a photopolymerisable layer including a polymerisable compound, a first infrared absorbing dye according to Formula I and a photoinitiator; and (ii) a toplayer provided above the photopolymerisable layer which includes a second infrared absorbing compound which includes a thermocleavable group which transforms into a group which is a stronger electron-donor upon exposure to heat and/or IR radiation, and is capable of forming a print-out image upon exposure to heat and/or IR radiation, wherein A represents a halogen, an optionally substituted aliphatic hydrocarbon group, an optionally substituted (hetero)aryl group or -NR 1 R 2, wherein R 1 and R 2 independently represent hydrogen, an optionally substituted aliphatic hydrocarbon group or an optionally substituted (hetero)aryl group, and/or combinations thereof; Z and Z' represent -S-, -CR a R b - or -CH=CH-; R a and R b represent an alkyl, aralkyl or aryl group; Q represents the necessary atoms to form a ring; Rz and Rz' independently represent a linear or branched alkyl group; T and T' independently represent hydrogen, alkyl, halogen, alkoxy, cyano, - CO 2 R n, -CONR k R m, -SO 2 R n, -SO 2 NR o R p, a carboxylic acid, an ester, a nitrile, an alkyl or (hetero)aryl phosphonate, an alkyl or (hetero)aryl sulphonate, a sulfoxide, a nitro and/or a trihaloalkyl group, or an optionally substituted annulated benzene ring wherein R k, R m represent hydrogen, an optionally substituted alkyl or aryl group, R n represents an optionally substituted alkyl or aryl group and R o and R p represent hydrogen, an optionally substituted alkyl or aryl group; provided that at least one of T and/or T' represents at least one electron withdrawing substituent; and W - represents a counterion in order to obtain an electrically neutral compound. A represents a halogen, an optionally substituted aliphatic hydrocarbon group, an optionally substituted (hetero)aryl group or -NR 1 R 2, wherein R 1 and R 2 independently represent hydrogen, an optionally substituted aliphatic hydrocarbon group or an optionally substituted (hetero)aryl group, and/or combinations thereof; Z and Z' represent -S-, -CR a R b - or -CH=CH-; R a and R b represent an alkyl, aralkyl or aryl group; Q represents the necessary atoms to form a ring; Rz and Rz' independently represent a linear or branched alkyl group; T and T' independently represent hydrogen, alkyl, halogen, alkoxy, cyano, - CO 2 R n, -CONR k R m, -SO 2 R n, -SO 2 NR o R p, a carboxylic acid, an ester, a nitrile, an alkyl or (hetero)aryl phosphonate, an alkyl or (hetero)aryl sulphonate, a sulfoxide, a nitro and/or a trihaloalkyl group, or an optionally substituted annulated benzene ring wherein R k, R m represent hydrogen, an optionally substituted alkyl or aryl group, R n represents an optionally substituted alkyl or aryl group and R o and R p represent hydrogen, an optionally substituted alkyl or aryl group; provided that at least one of T and/or T' represents at least one electron withdrawing substituent; and W - represents a counterion in order to obtain an electrically neutral compound.