Oklahoma has been shaken by a series of earthquakes, culminating in a 5.6 magnitude quake that is the state's biggest on record.
Homes damaged and roads buckled by series of shocks including the biggest on record in US state

Earthquakes of up to 5.6 magnitude have shaken Oklahoma, damaging buildings and roads and sending a handful of people to hospital.

The first quake was recorded on Saturday morning at a magnitude of 4.7. The second came on Saturday night and is the largest ever recorded in Oklahoma, topping a tremor of 5.5 magnitude in 1952, according to the US Geological Survey.

In Prague, Oklahoma, where the first quake was centred, city manager Jim Greff said part of the town library's ceiling collapsed and a chimney fell through the roof of a home. There were no serious injuries.