Particle acceleration can occur continuously over active regions, with keV electrons producing radio Type III noise storms from hours to days. What is not clear is whether all the particles escape the solar atmosphere, or whether some are confined to the corona with the MeV energy required to produce gyrosynchrotron emission. The type III noise storm observed by LOFAR on 10th April 2019 was followed by series of microflares detected within the 4-8 GHz range by Siberian Radioheliograph. We present the preliminary results of the study of the relationship between activity in microwave and radio ranges. We carried out the analysis of the quasiperiodicity observed in both frequency ranges and used data in MW and EUV for finding the possible source of the type III bursts.