Teargas fired inside Nigeria parliament before key vote

ABUJA, Nov 20 (AFP):  Nigerian security forces fired teargas on Thursday inside the parliament complex as opposition lawmakers, including the speaker of the lower house, arrived for a key vote on emergency rule in the northeast.
The leader of the Senate, David Mark, later ordered the immediate closure of both chambers until next week over the incident.
Multiple reports, including from eye witnesses, indicated that security agents tried to block House of Representatives Speaker Aminu Tambuwal, who defected to the opposition last month, from entering the building.
The ruling Peoples Democratic Party (PDP) has tried to remove Tambuwal from the speaker's chair since his defection and stripped him of his security detail.