Michael Odongo, East Kyoga regional police spokesperson, told Xinhua by telephone that four people were killed in the first fatal accident within Kumi town.
The police spokesperson said three other people were killed near Odelo market, a few kilometers to Kumi town.
"The cause of these accidents are mainly reckless driving. We caution drivers to always be careful while on the road," said Odongo.
The police spokesperson said the bodies of the deceased were taken to Kumi hospital for autopsy, before handling them to relatives for burial.
The police attribute the high rates of road carnage to reckless driving, over speeding, drink driving and overloading speeding in the east African country.
Uganda registers about 20,000 accidents each year, with some 2,000 deaths, making it one of the countries with the highest traffic death rates, according to police statistics.