Internal combustion engine having two exhaust gas turbocharger

An internal combustion engine comprising a high pressure turbocharger (2) close to the engine (1) and a low pressure turbocharger (3) further remote from the engine (1), the high pressure turbocharger (2) having a high pressure turbine (4) and a high pressure compressor (5) connected to the high pressure turbine (4) so as to be driven thereby and the low pressure turbocharger (3) having a low pressure turbine (7) and a low pressure compressor (8) connected to the low pressure turbine (7) to be driven thereby, an intake line (12) extending from the low pressure compressor (8) via the high pressure compressor (5) to the engine (1) for supplying pressurized combustion air thereto, said internal combustion engine (1) being divided into first and second sections (1a, 1b), a first exhaust gas line (10) extending from the first section (1a) of the engine (1) to a first section (4a) of the high pressure turbine (4) which first section (4a) includes a variable turbine geometry (22) for controlling the exhaust gas pressure in the first exhaust gas line (10) and a second exhaust gas line (11) extending from the second section (1b). of the engine (1) to a second section (4b) of the high pressure turbine (4) in which the exhaust gas pressure is lower than in the first section (4a) and from there to the low pressure exhaust gas turbine (7) for conducting exhaust gas of the first and the second engine sections (1a, 1b) jointly from the high pressure turbine (4) to the low pressure turbine (7), and an exhaust gas recirculation line (16) branching of the first exhaust gas line (10) upstream of the high pressure turbine (4) and extending to the intake line (12) downstream of the high pressure compressor (5) for recirculating exhaust gas from the first section (1a) of the engine to the pressurized combustion air supplied to the engine (1) under a pressure controllable by the variable turbine geometry (22) in the first section (4a) of the high pressure turbine (4).