Dark matter is necessary to explain multiple astrophysical observations that appear to be the result of the presence of mass which cannot be seen using light or other electromagnetic waves. One way to search for dark matter is through production at colliders, such as the LHC at CERN. A search for new physics has been performed at the CMS experiment using events having large missing transverse momentum and one or more jets with high transverse momenta in a data sample of proton-proton interactions at the centre-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 2.1 fb−1 collected by the CMS detector at the LHC. Results are presented in terms of limits on dark matter production based on simplified models.