Two alleged criminals, carrying cash rewards of Rs 50,000 on their heads, were killed in separate encounters in Uttar Pradesh`s Bulandshahr district, police said on Tuesday.

Three policemen were also injured in the exchange of fire in the two incidents, they added. Senior Superintendent of Police (SSP) Shlok Kumar said the encounters took place on Monday night under Kotwali Nagar and Pahasu police stations.