Explosions hit two police checkpoints in the Gaza Strip on Tuesday, killing three officers and wounding several other Palestinians, the Hamas-run interior ministry said, declaring a state of emergency after the blasts.

Such attacks on Hamas, which has the most powerful armed apparatus in the enclave, were rare.

Interior ministry spokesman, Eyad Al-Bozom, said security forces were making progress in their pursuit of those behind the explosions, but he did not disclose further details.

Read more: Reuters