At least 1,100 suspects were arrested and more than 300 weapons seized across the UK in a clampdown on crime networks, the National Police Chiefs' Council (NPCC) said Thursday.

The round-up of suspects was part of an intensification week by police forces in a clampdown on so-called County Line networks in which drugs are exported from major cities and imported into other areas, often using vulnerable adults and children, Xinhua news agency quoted the NPCC as saying on Thursday.