Rockfall on Whangamoa Hill has closed State Highway 6 between Nelson and Marlborough.
The road was closed at 2pm today after the slip, located between Rai Valley and Hira.
NZ Transport Agency Waka Kotahi (NZTA) said residents will be unable to access their properties until the road opens, except for those who live on Teal Valley Rd and Ross Rd.
“For those travelling between Nelson and Marlborough, continue to detour via SH6 and SH63,” it said in a statement.