Ooh there is some awful english in those two reports:
The BBC's Ben Ando said eyewitnesses saw armed police officers surround the man and sniffer dogs sent in to check the rucksack.
Why did the police surround the sniffer dogs?
It is understood the north runway, also identified as 27R, has been closed.
At weekends, it likes to be known as Doris
and he was carrying a rucksack, which is worrying in itself
Could someone please reassure the rucksack?