Methods: Study group: Pulse oximetry will be used to measure SpO2 and heart rate as routine non-invasive monitoring in the first minutes of resuscitation. In addition during the first 15 minutes NIRS measurements will be recorded. crSO2 measurements in addition SpO2 measurements will be used to guide supplemental oxygen support and respiratory support during the first 15 minutes after birth. Control group: Only SpO2 measurements will be used to guide supplemental oxygen support and respiratory support during the first 15 minutes after birth.