UPS drivers record temperatures above 100F in trucks without air conditioning

Drivers post pictures of thermometers reaching 116F, 117F and 121F inside vehicles amid record-breaking heat

UPS delivery truck drivers have begun sharing pictures showing the sweltering temperatures recorded inside their vans as communities across the US continue to experience record-breaking temperatures.

In a viral tweet shared by Teamsters for a Democratic Union drivers posted pictures of thermometers inside trucks reaching 116F (47C), 117F and 121F - temperatures far above what is considered safe. UPS trucks do not have air conditioning.