Friends and relatives of the two women who were killed when their car left the road in Swindon have been warned by police to avoid leaving flowers at the crash scene for their own safety.
"We have had one or two people pulling up at the scene to pay their respects," a police spokesman said.
"This stretch of road is a clearway with traffic travelling at speeds of up to 70mph.
"Anyone who attempts to stop, no matter how briefly, could be putting themselves and others at risk of serious injury.
More top news
The US president made the pledge as he addressed his plans to respond to Russia and North Korea following recent missile launches.
Leicester City have sacked manager Claudio Ranieri less than nine months after he guided them to a historic Premier League title
Around 40 people were in the sports hall at Southwood Middle School in Milton Keynes when the 8ft by 5ft ceiling caved in.