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(Image: SG)

Gunfire has reportedly been heard at the Corbeille Essonne market in the 16th arrondissment.

A man in his 30s is believed to have shot a female – understood to be his wife – in the middle of a suburban street.

Cops are now on the scene.

The city is on high alert and tensions remain high after a string of terror attacks in recent months.

A huge explosion rocked the Paris metro network on Wednesday evening.

Transport bosses later confirmed the incident was caused by “a technical fault”.

It comes days after a knifeman went on the rampage at the Louvre museum in the French capital.