Strange metals – which exhibit unusual properties such as a resistivity that scales linearly with temperature – challenge our understanding of charge transport in metals. We investigate how the strange metal phase of La2-xSrxCuO4 is impacted by field-induced antiferromagnetism. We find that the strange metal phase appears at low temperatures over an extended range of magnetic fields where magnetic moments fluctuate, and disappears when magnetic fluctuations are quenched with magnetic fields. This suggests that strange metalicity is linked to the existence of magnetic fluctuations persisting at low T and high fields. The high field emergence of static magnetism produces large insultaing-like resistivity upturns inside the pseudogap phase. Our Hall effect data show that this increase in resistivity is caused by a loss of carrier density, suggesting a coupling between charge and spins that leads to the concomitent freezing of charge and spin degrees of freedom.