Police arrest suspect in double shooting that killed three

Police arrested a man suspected of killing three people and wounding two on Wednesday at a Maryland business park before shooting another person in neighboring Delaware.

Radee Prince, 37, was caught as he fled on foot in Delaware after a manhunt that saw local Maryland schools in lockdown and the nearby set of Netflix drama House of Cards reportedly sealed off.

Police said the latest mass shooting to hit the United States was a "targeted attack".

"At 7:05 pm (2305 GMT), a suspect was taken into police custody after a brief foot chase," Wilmington, Delaware Police Chief Robert Tracy told a televised news conference.