21.  Heavily armed supporters of the rival factions have taken up positions on rooftops in several neighborhoods of Karachi, attacking police stations and setting scores of vehicles on fire.

22.  His Ulimo rebel group was blamed for the violence and Johnson had been holed up in his house with armed supporters, refusing to surrender.

23.  His Ulimo rebel group was blamed for the violence and Johnson has been holed up in his house with armed supporters, refusing to surrender.

24.  His Ulimo rebel group was blamed for the violence, and Johnson had been holed up in his house with armed supporters.

25.  His Ulimo rebels were blamed for the deaths and Johnson holed up in his house with armed supporters, refusing to surrender.

26.  His Ulimo rebel group was blamed for the violence, and Johnson had been holed up in his house with armed supporters, refusing to surrender.

27.  His Ulimo rebel group was blamed for the violence, and Johnson has been holed up in his house with armed supporters, refusing to surrender.

28.  His Ulimo rebels were blamed for the deaths, and Johnson holed up in his house with armed supporters, refusing to surrender.

29.  His Ulimo-J rebels were blamed for the deaths and Johnson holed up in his house with armed supporters, refusing to surrender.

30.  Hundreds of armed supporters of a national lawmaker stormed a government building in southern Russia on Thursday after clashes with security forces left at least one person dead.